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Big is beautiful. Post your largest coins, World, American or Ancient


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Posted · Supporter
Posted (edited)

Post your largest coin, not tokens or medals.

Issuer     Panama
Period     Republic (1903-date)
Type     Non-circulating coin
Years     1972-1976
Value     20 Balboas
20 PAB = EUR 18
Currency     Balboa (1904-date)
Composition     Silver (.925)
Weight     129.59 g
Diameter     61 mm
Thickness     4.7 mm
Shape     Round
Technique     Milled
Orientation     Medal alignment ↑↑
Number     N#
References     KM# 31

Any marks are on the capsule


Edited by expat
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  • expat changed the title to Big is beautiful. Post your largest coins, World, American or Ancient
Posted (edited)

The largest coin in my collection is this 2013 5 oz silver quarter commemorating the Great Basin National Park in Nevada. The coin measures over 76 mm in diameter and contains 5 troy ounces of 99.9% pure silver. Despite being a silver bullion coin, it shares the same design and 25 cent denomination as the quarters circulating in 2013. 





Year: 2013
Grade: MS69
Grade Service: PCGS 
Denomination: 25 Cents
Mint Mark: P - Philadelphia (Not Shown)
Metal Content: 5 troy oz
Purity: .999
Thickness: 4.064 mm
Diameter: 76.2 mm





Edited by MrMonkeySwag96
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PTOLEMIC EGYPT. Ptolemy III Euergetes, 246-222 BC. AE Drachm: 67.32 gm, 41 mm, 12 h. Obverse: Zeus Amon. Reverse: Eagle on thunderbolt, cornucopia in left field. Svoronos 964. Ex Harlan J. Berk, Bid or Buy Sale, January 18, 2018, lot 316.

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Roman Republic. Anonymous, circa 225-217 BC. Æs Grave As (66mm, 272.08g, 12h). Libral cast series. Rome mint. Obv: Laureate head of bearded Janus, line below, all on a raised disk. Rev: Prow of galley to right; I (mark of value) above; all on a raised disk. Ref: Crawford 35/1; HN Italy 337; Thurlow-Vecchi 51a. Sydenham Aes Grave 71; Haeberlin pl. 10, 1–16; BMCRR Rome (Aes Grave) 1–9; Kestner 112–3; RBW 83. Earthen green patina. Good Very Fine. Ex Astarte Web Auction 1 (July 31, 2023), Lot 84.image.jpeg.84d71c3ce9df8dc45ca41882c8e5ca9c.jpeg

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Posted · Supporter
Posted (edited)



Emperor: Xian Feng
Board of Revenue
Av: Xian Feng Zhong Bao 咸 豐 重 寶
Rv: Dang 當 Wushi 十五 (Value 50), Boo Chiowan
Brass, 60g, 56mm
Ref.: Hartill 22.703

Edited by shanxi
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Posted · Supporter

Largest modern:


AR '10 Dollars' non-circulation coin (50.00mm, 49.70g, 12h)
Dated 1973. Struck by the Franklin Mint (Pennsylvania, USA) for the Bahamas
Obverse: COMMONWEALTH OF THE BAHAMAS, crowned and draped bust of Queen Elizabeth II right; ELIZABETH II below
Reverse: INDEPENDENCE 10 JULY 1973, Santa Maria, left, under full sail; 10 DOLLARS below
References: Numista 16333


Largest ancient:


PTOLEMY II, 284-246 BC
AE Drachm (43.29mm, 72.67g, 1h)
Struck 266-261 BC. Egypt, Alexandria mint
Obverse: Horned head of Zeus Ammon right, wearing taenia with basileion
Reverse: ΠΤΟΛΕΜΑΙΟΥ on l. ΒΑΣΙΛΕΩΣ on r.; two eagles with closed wings standing left on two thunderbolts; monograms between legs
References: CPE B241
Warm brown surfaces. A massive piece, over two and a half ounces of bronze.

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@expat, I'll call your Panama 20 Balboas (130 gm, 61mm) and raise you a decadrachm (42.6 gm, 33mm). 


Modern. Panama 1972 AR 20 Balboas (130 gm, 61mm, 12h). Commemorative. 0.925 fineness, 3.85 oz silver. Head and neck right. SIMON BOLIVAR 1783-1830. / Coat of arms of Panama, a shield festooned with two gathered flags, surmounted with harpy eagle and motto Pro Mundi Beneficio. Ten stars above • REPUBLICA DE PANAMA • • 20 BALBOAS • LEY 0.925 Proof. Non-circulating 20 PAB coin, minted 1971 to 1978, as the largest legal silver tender in the world. Mintage: 48,000.  KM #31. Manufactured by the Franklin Mint.
Greek Sicily. Syracuse, Dionysios I. 405-367 BC. AR Dekadrachm (42.64ᵍᵐ 33ᵐᵐ 6ʰ). Fast quadriga driven left by charioteer being crowned by Nike, flying right; ex: panoply of armor, spear behind. / Head of Arethusa left, hair wreathed, wearing pendant earring and pearl necklace, four dolphins around & scallop shell behind. [ΣΥΡΑΚΟΣΙΩΝ]. nVF/gVF. Bt. Louis diLauro, Coral Gables, 2002. Unsigned die by the "shell engraver" in the style of Euainetos. Characteristic obv. die rust. SNG ANS 5 #370 (same dies); ACNAC Dewing 907-908 (same); Gallatin series F: O.VIII-R.F.I #1-2 (same); Gulbenkian Coll. I #315-317; HGC 2 #1299; SNG Ashmolean II #2026. 
Must say, I'm really taken by @Edessa's door stop. My aes grave triens weighs in at 90 gm, but it is still just one third of his aes grave as.  
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Posted (edited)

My largest Ancient stamped / hammered coin

201-175 BCE
Æ 15 Shekels
45 mm 7.5 mm thick. 102g
Wreathed Tanit
Horse Uraeus above.
MAA 104 SNG Cop 400


My largest CAST Ancient:


Aes Grave Anon 280-276 BCE 

Triens 46mm 90.3g 9.3mm thick 


Rome Mint

Crawford 14-3 T Vecchi 3


My largest Modern - I really like these, gorgeous coin.  I have a few...



AU 50 Pesos

1.2057 TOZ / 37.5g


Edited by Alegandron
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I'm still looking for a pentakaidekadrachm which would be larger but for now, this is my largest:


SICILY, Syracuse. Dionysios I, 405-367 BC. Dekadrachm (Silver, 37mm, 43.51 g 7), unsigned but by Kimon, c. 404-400. Quadriga galloping to left, driven by a female charioteer who leans forward, with a kentron in her right hand and the reins in her left; above left, Nike flying right to crown the driver; in exergue below, panoply of arms on pedestal inscribed with ΑΘΛΑ. Rev. ΣΥΡΑΚΟΣΙΩ Head of Arethusa to left, her hair bound in an ampyx with a net behind, and wearing a pendant earring and a pearl necklace; around her head, four dolphins: two swimming towards each other before, one swimming downwards behind, and one nestling under the neck truncation. Gulbenkian 309. Jongkees 12. Rizzo pl. LVI, 6..

Ex Numismatica Ars Classica 27, 12 May 2004, 121 and Bank Leu 61, 17 May 1995, 75.

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That would be the "Cincuentín".

Spain, Philip IV, 50 Reales, Segovia, 1635 R.

170 grams



Runners up in world crowns: 

England, Charles I, Oxford half pound, 1643.


60.2 grams


 One more world crown "heavyweight".

Ferdinand IV, Sicily, oncia, 1791.

 68.2 grams


And a broad two thalers.

Brunswick-Luneburg-Celle, 1662-LW, 2 thalers.


57.5 grams



Heaviest ancient:

Thrace, Abdera, oktadrachm, period II 520-492 BC.

Spencer-Chruchill 96  

29.3 grams


Edited by robinjojo
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This isn't exactly a coin - bit of a currency bar - but it is the heaviest money I have.   Sometimes I think I see part of a bull on it, but probably not.

Coin: Bronze Currency Bar
- Sub-rectangular section of bronze bar
- Indeterminate design
Mint: Central Italy
Wt./Size/Axis: 588.00g / 70mm / -
  • cf. ICC p.26 3
  • Haeberlin pl. 5, 1
  • Ex. Gorny & Mosch 253, 5 March 2018, lot 342
Acquisition/Sale: Roma Numismatics Online auction E-Live Auction 3 #560 25-Oct-2018



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I've got to add one to the Ptolemy parade:



Ptolemy IV 221-205 BC AE Drachma. (75.52g, 41mm, 12h)

Obverse: Bust of Zeus Ammon right

Reverse: ΠΤΟΛΕΜΑΙΟΥ ΒΑΣΙΛΕΩΣ, Eagle standing left on thunderbolt, cornucopiae in front, ΛΙ between legs

Note: Pleasing bronzey tone

Reference: SNG Cop 199. 



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