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Home ▸ Catalog ▸ Themes & Provenance ▸ Numismatics ▸ Mint ErrorsView Options:  |  |  | 

Mint Errors

Ancient coins dies were hand engraved and the coins were hand struck. Significant variation is normal and errors, including spelling errors, off center strikes, double strikes, etc. usually decrease, not increase, the value of ancient coins. On this page we will list only the more unusual errors, beyond those ordinarily expected.


Phaselis, Lycia, 500 - 466 B.C.

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Partial brockage obverse. The obverse was re-struck off-center over a brockage of the reverse, leaving two clear impressions.
GA83588. Silver tetrobol, SNGvA 4396, SNG Berry 1200 var. (ΦA above galley, Σ below), SNG Cop -, SNG Fitzwilliam -, VF, toned, tight flan, die wear, die cracks, partial brockage, weight 3.507 g, maximum diameter 15.0 mm, die axis 90o, Phaselis mint, 500 - 440 B.C.; obverse prow of war galley right in the form of a boar's forepart, partial brockage with incuse letters ΦA visible on obverse; reverse stern right, ΦAΣ above, all in incuse square; ex Roma Numismatics, e-sale 21 (31 Oct 2015), 368; $180.00 (Ä153.00)


Ptolemaic Kingdom, Ptolemy VI Philometor, 180 - 145 B.C., Reverse Brockage

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A brockage occurs when a blank is struck with a previously struck coin which adhered to the opposite die. Click here to read a detailed explanation.
GP85469. Bronze quarter obol, Svoronos 1408, Weiser -, SNG Cop -, Noeske -, Hosking -, SNG Milan -, Malter -, Tziambazis -, VF, reverse brockage, edge cracks, weight 1.793 g, maximum diameter 13.9 mm, Cyprus, uncertain mint, c. 176 - 170 B.C.; obverse incuse of reverse (normal obverse is diademed head of Zeus-Ammon right); reverse BAΣIΛEΩΣ ΠTOΛEMAIOY, eagle standing left on fulmen (thunderbolt), wings closed, lotus in left field; scarce error; $115.00 (Ä97.75)


Constantius II, 22 May 337 - 3 November 361 A.D., Brockage

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A brockage occurs when a blank is struck with a previously struck coin which adhered to the opposite die. Click here to read a detailed explanation.
RL84593. Bronze reduced centenionalis, aVF, weight 1.543 g, maximum diameter 15.4 mm, die axis 0o, as caesar, 13 Nov 24 - 22 May 337 A.D.; obverse D N IVL CONSTANTIVS NOB C, laureate and draped bust right; reverse incuse of the obverse; $70.00 (Ä59.50)







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Catalog current as of Thursday, June 21, 2018.
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Mint Errors