Gordianus AE Bronze - is this a die break?

[Prieure de Sion]

For the technically minded - is this what is known as a "die break"?

Can someone explain to me how this technically happened at this time? 
How does something like this come about?
Thank you!

 

 

[Roman Collector]

Yes, it is due to breaking of the dies. The term for the abnormal lump on the coin resulting from a die break is a cud. This irregularly-shaped, raised thing behind Pietas's head is a cud, too.

Trebonianus Gallus, AD 251-253.
Roman AR Antoninianus, 3.69 g, 20.2 mm, 7 h.
Uncertain mint, AD 252-253.
Obv: IMP C C VIB TREB GALLVS AVG, radiate, draped and cuirassed bust, right.
Rev: PIETAS AVGG, Pietas standing left and raising both hands; altar at feet.
Refs: RIC 72; Cohen 88; RCV 9643; ERIC II 41.

 

 

Edited October 22, 2022 by Roman Collector
Clarification and posting a photo of another example

[Prieure de Sion]

49 minutes ago, Roman Collector said:

Yes, it is due to breaking of the dies. The term the abnormal lump on the coin resulting from a die break is a cud.

Thank you - then the coin is not "dangerous".

[Roman Collector]

10 minutes ago, Prieure de Sion said:

Thank you - then the coin is not "dangerous".

No. It's very interesting because of this. I think so, anyway.

[CaptCaveman45]

1 minute ago, Roman Collector said:

No. It's very interesting because of this. I think so, anyway.

there are collectors out there that collect nothing but die breaks, cuds, errors, misprints, damaged, etc. to them, every coin is unique. me, i like the worn coins because it shows they were well used and after 1500+ years they have survived and that shows a lot of history.