Victor_Clark

4 hours ago, Hrefn said:

From Trier here are two large folles, of Diocletian and Constantine.  

The Diocletian is from Ticinum

No, it is an official issue.

12 hours ago, Coinmaster said:

I like they've got coin pictures on the wall..!

and they missed an opportunity to show any coins from Trier

so here's a Trier coin

Constantine I
A.D. 307
26mm 6.9g
FL VAL CONSTANTINVS NOB C; laureate and cuirassed bust right.
PRINCIPI IVVENTVTIS; Prince, in military dress, holding standard in each hand; S-A across fields.
In ex. PTR
RIC VI Trier 734

Licinius I & Licinius II
A.D. 320
Ӕ nummus 21x22mm 4.2g
D D N N IOVII LICINII INVICT AVG ET CAES; laureate and draped confronted busts, together holding Fortuna.
I O M ET FORT CONSER D D N N AVG ET CAES; Jupiter standing left, chlamys across left shoulder, holding Victory on globe in right hand, leaning on sceptre; Fortuna standing right crowned with modius, holding cornucopiae and rudder set on globe.
In ex. SMNΔ
RIC VII Nicomedia 38

4 hours ago, Tejas said:

Great coin. I wish it was mine (as so often :-))

The British Museum also lists a Constantine radiate fraction, but in reality it is a common Constantius. (I have notified them about the mistake).

https://www.britishmuseum.org/collection/object/C_1981-0413-12

It's Constantine I. Look at the legend-- CONSTANTINVS vs CONSTANTIVS

also one being installed in England.

here is the one in Rome

a coin from Rome about the same time as the original statue

Constantine I
A.D. 312- 313
21mm 4.7g
IMP C CONSTANTINVS P F AVG; laureate and cuirassed bust right.
HERCVLI VICTORI; Hercules standing right, leaning on club and holding Victory on globe and lion’s skin.
In ex. R S
RIC VI Rome 299

I am now in the Crusader bowl cut camp. I looked at all the Tancred examples on acsearch and there were a lot. Sometimes it is not very clear but other times it is definitely just a poor haircut. Of course, depending on whether the same thing is being engraved each time. You can often see what looks like a decoration over his head. Here are some of the better examples--

the best for last--

These are things you can worry about but never be certain...each die is hand engraved and will always be different.

if turban is confusing, call it a chaperon.

and here is mine which clearly shows that he is wearing a turban

How many "unique" wolf and twins reverses? the only difference is the legend, otherwise same old wolf and twins. Even the Ostrogths recycled this reverse.

nice, I need a London 40. I have several others though.

Constantine I
A.D. 307
29mm     9.3g
FL VAL CONSTANTINVS NOB C; laureate, draped and cuirassed bust right.
GENIO POP ROM; Genius standing left, tower on head, loins draped, r. holding patera, l. cornucopiae.
In ex. PLN
RIC VI London 89b; LMCC 5.01.009

Constantine I
A.D. 307- 310
25x27mm     6.2g
IMP CONSTANTINVS P F AVG; laureate and cuirassed bust right.
GENIO POP ROM; Genius standing left, tower on head, loins draped, r. holding patera, l. cornucopiae.
In ex. PLN
RIC VI London 103 corr.; LMCC 5.04.003

I have RIC 50 with a fat Genio

Constantine I
A.D. 314
29mm     9.3g
IMP CONSTANTINVS AVG; laureate and cuirassed bust right.
GENIO POP ROM; Genius standing left, tower on head, loins draped, r. holding patera, l. cornucopiae; S-P across fields.
In ex. MLN
RIC VII London 50; LMCC 8.06.001

and this one not in RIC

Constantine I
A.D. 314- 315
21mm    3,7g
IMP CONSTANTINVS AVG; laureate and cuirassed bust right.
GENIO POP ROM; Genius standing left, tower on head, loins draped, r. holding patera, l. cornucopiae; across fields S-P
In ex. MSL
RIC VII London--; LMCC 8.07.001; RML 693 (forthcoming)

16 minutes ago, John Conduitt said:

I don’t know if it corrodes very easily. It has been used since Roman times for plumbing (the Latin being plumbum, where Pb comes from) and is used in roofing specifically to repel water. But in certain circumstances it corrodes more quickly - like copper it needs a patina - which might be why this wouldn’t happen often to coins.

Maybe I wasn't specific enough...it corrodes easily out of coins...nothing to do with plumbing.

Teresa Clay, “Metallurgy and Metallography in Numismatics.” Numismatica e Antichità Classiche 17 (1988) : 341- 352.

Corrosion may also promote a silvery surface on a coin. Lead corrodes very easily, and as it is displaced, silver can be deposited on the surface. 

2 hours ago, Ursus said:

Thanks to @Roerbakmix for introducing this method to our forum community! 

This method has been around for years. Here is a 2007 post from Bruce; who is a chemist and used to be very active on several forums; though I haven't seen him lately.

https://www.worldofcoins.eu/forum/index.php?topic=654.0

here's a book published in 2008 that talks about it (page 49-50)

Why clean them? You are not giving the world anything that hasn't been seen before. By cleaning them you destroy the history and wind up with two mediocre coins. I almost always leave groups of coins alone. Below are some coins I got from France that were metal detected and I have done nothing to them.

I flipped them and put them in a tray.

I have lots of duplicates. The coins below are all RIC VII Siscia 95.

Since these were mentioned and I love trotting them out for show; I have two bronze coins countermarked as 4 maravedis (crown over IIII) in the 1600's

Gallienus
A.D. 260- 268
Ӕ Antoninianus
20x21mm    3.0g
GALLIENVS AVG; radiate head right.
SECVRIT PERPET; Securitas standing facing, head left, leaning on column to right and holding scepter H in right field.
RIC IV Rome 280
 

Constantine I
A.D. 312- 313
22mm   4.1g
IMP CONSTANTINVS P F AVG laureate, draped, seen from the rear. 
SPQR OPTIMO PRINCIP; Legionary eagle between two vexilla, that on left surmounted by a right hand, that on right by a wreath; flag on the eagle.
in ex R S    
RIC VI Rome 348
 

Constantine II GLORIA EXERCITVS maybe Lyon mint (17mm 2.2g) overstruck by an unofficial FEL TEMP REPARATIO fallen horseman maybe copying a Constantinople issue.

some more

I was interested in the below coin for three reasons-- #1 it is a hoard coin  #2 it is a plate in Coin Hoards from Roman Britain 10 (#238) and #3 it is not listed in RIC.

This hoard was discovered on 18 January 1993 in Chapmanslade in Wiltshire. It comprised 5,200 coins with all but 12 issued after A.D. 317 and the latest coins were from A.D. 337.

Crispus
A.D. 321- 323
18mm     2.3gm
IVL CRISPVS NOB C; bust l., helmeted, cuir., shield on l. shoulder, Victory on globe in r. hand.
BEATA TRANQVILLITAS; globe set on altar inscribed VO/TIS/XX; above, three stars.
In ex.  [P]TR crescent
RIC VII Trier -- ; RMBT 247; Chapmanslade CHRB X 238 (this coin)

Interestingly, as I was reading in CHRB about this hoard, there was a section about coins that were not in RIC. This coin (#238) was not listed. I read on and saw that they considered this coin an unofficial issue.

However, there is another example, die matched with this one, that clearly shows they are official.

https://www.notinric.lechstepniewski.info/7tri-402_s.html

According to “Die Römische Münzserie Beata Tranquillitas in der Prägestätte Trier 321-323” (RMBT), though hesitatingly with ?'s, the shield is engraved with Constantine I seated beside Crispus with Constantine II in between.

This coin is not listed in RIC, but it is in Alten & Zschucke's  Beata Tranquillitas from Trier 321-323.

Though the coin is in poorly preserved condition, it looks like the left shoulder has some decoration. Trier armor is often depicted with large, intricately engraved shoulders, often depicting what some German collectors call Trierer Pelzchen or "small fur from Trier" since it looks like the armor is trimmed with fur. On this coin though, it appears to be three figures, perhaps the three graces or maybe it is just elaborate tassels/ fringes, but it really looks more like figures. Maybe the engraver was confused by the large open area of the shoulder and thought it should have been engraved like a shield.

Constantine II
A.D. 322- 323
18x19mm    3.2gm
CONSTANTINVS IVN NOB C; laureate, draped and cuirassed bust left, holding victory on globe in right and spear over left shoulder.
BEATA TRANQVILLITAS; globe set on altar inscribed VO/TIS/XX; above, three stars.
In ex. dot STR dot
RIC VII Trier --
Alten & Zschucke #117

Constantine II
A.D. 322- 323
17x18mm     2.7gm
CONSTANTINVS IVN NOB C; bust left, laureate, draped and cuirassed, raising right hand, globe in left.
BEATA TRAN-QVILLITAS; globe set on altar inscribed VO/TIS/XX; above, three stars.
In ex. •PTR•
RIC VII Trier 387

struck with two flans stuck together

Constantine II
A.D. 320
19mm 5.8g
D N CONSTANTINO IVN NOB C; laureate, draped and cuirassed bust right.
VICTORIAE LAET PRINC PERP; two Victories stg., facing one another, together holding wreath inscribed VOT PR on altar.
in ex. P two captives L
RIC VII Lyon 90

two of my favorite Constantine II unofficial issues

Constantine II
A.D. 326
18x19mm 2.6gm
CONSTANTINVS IVN NOB C; Laureate, draped and cuirassed bust left.
PROVIDEN-TIAE CAESS; camp gate with two turrets and star between them.
In ex. T crescent T
Cf. RIC VII Ticinum 200

The obverse is in good style, but bust left is not in RIC for this issue. The reverse style is very strange for Ticinum, especially the large turrets.

Constantine II
Circa A.D. 340
13x14mm 1.5gm
[????] CONSINNITVS AVG; laureate and cuirassed bust right.
[VIRTVS] IVGG NN; Virtus standing holding spear and resting hand on shield.
In ex. TRP

Constantine II
A.D. 321
19mm 2.8g
CONSTANTINVS IVN NOB C; Laureate, draped, and cuirassed bust right, holding spear over shoulder and horse’s head by reins.
BEATA TRA-NQVILLITAS globe set on altar inscribed VOT/IS/XX; above, three stars.
in ex. PTR
cf. RIC VII Trier 314; RMBT 64

possible error in RIC…this coin might actually be RIC 314

Constantine II
A.D. 332- 333
16x18mm 2.6gm
CONSTANTINS IVN NOB C; pearl-diademed, draped and cuirassed bust.
GLOR-IA EXERC-ITVS; Two soldiers helmeted, stg. facing one another, reversed spear in outer hands, inner hands on shields resting on the ground; between them two standards.
in ex. •SMKS
RIC VII Cyzicus 98

maybe a really good unofficial issue

spelling error on obverse-- CONSTANTINS

Constantine II
A.D. 319- 320
18x19mm 3.5g
CONSTANT-INVS IVN NOB C; laureate, draped and cuirassed bust right.
VICT•LAETAE PRINC PERP; two Victories stg., facing one another, together holding wreath inscribed VOT PR on altar inscribed with what looks like a circle though it should be an S.
In ex. ΓSIS✶
RIC VII Siscia –-

RIC does not list this emission with the longer obverse legend, only N C versus NOB C.

Ex-Peter Weiß

https://de.wikipedia.org/wiki/Peter_Weiß_(Historiker)

Plate coin for Bikić-Do Hoard #387

Sirmium VIII. Études de Numismatique Danubienne: Trésors, Lingots, Imitations. Monnaies de Fouilles IV au XII Siècle (Rome: Ecole francaise de Rome, 1978)

This hoard was discovered in Serbia in 1952. There were 10,590 coins, mostly from Eastern mints. 22 coins dated before A.D. 318 and 9 after A.D. 324. There were no Licinius IOVI types retarrifed to 12 and a half.

I don't know if it has been brought up already, as this thread is fairly long; but how about the ability to hide topics.

a friendly reminder to everyone --

Constantine I SOLI INVICTO COMITI from Lyon...imperatorial gestus
Constantine I
A.D. 316
19x20mm 3.4gm
CONSTANTINVS AVG; bust left, laureate, cuirassed and raising right hand.
SOLI INVIC-TO COMITI; Sol rad., raising r. hand, globe in l.; stg. l., chlamys across l. shoulder. A/S across fields.
in ex. PLG
RIC VII Lyons --; Bastien 605

not in RIC for the L2 l. bust, it should be listed after Lyons 61. It is, however, in Bastien, with one example noted.

Constantine I
A.D. 315
21x22mm 3.1g
IMP CONSTANTINVS AVG; cuirassed bust left wearing laureate helmet with wreath on side; shield with wolf and twins on left, Victory on globe in right, presenting wreath to Constantine.
SOLI INVIC-TO COMITI; Sol stg. left, raising r. hand, globe in l.; chlamys across l. shoulder; across fields T/F.
in ex. PLG
RIC VII Lyons 22; Bastien 553

Constantine I
A.D. 315
18mm 1.3g
CONSTANTINVS MAX AVG COS IIII; trabeate bust left with Victory on globe in right.
SOLI INVIC-TO COMITI; Sol stg. left, raising r. hand, globe in l.; chlamys across l. shoulder; T-F across fields.
in ex. PLG
RIC VII Lyons --; Bastien 554

Issued in A.D. 315 for the fourth consulship of Constantine...perhaps Constantine was actually in Lugdunum at the time

This coin is not in RIC for the bust type, it should come after RIC 24. It is in Bastien as #554.

and the worst condition coin in my collection

Constantine I
AD 307- 308
26x27mm   5.6g
IMP C CONSTANTINVS P F AVG; laureate, draped and cuirassed bust right, seen from rear.
VIRT PERP CONSTANTINI AVG; Virtus, holding Victory on globe, spear and shield; captive seated left.
In ex. PLG     
RIC VI Lugdunum 285