I've collected a lot of error coins but this one is by far the most intriguing. This is the auction photo and description: From the photo it's difficult to ascertain exactly how the coins are related. When I received the package the coin was stapled in a cardboard 2x2 flip. I could clearly see the obverse, reverse and edge of the coin. The first thing I noticed was a seam running completely around the coin; I thought that it must have been two flans that were struck together into one coin. When I opened the flip I was surprised when two coins fell out. Instead of one coin there were two. The flans perfectly aligned with the obverse and reverse images showing. The back of each coin is a blank. My assumption is that they must have stacked the blank flans and trimmed them, this would explain why they have precisely the same shape. Then when they struck the coin the two blank flans were stuck together producing the obverse with blank on one coin and the reverse with blank on the other. A truly unique mint error. These are two individual coins, it's a miracle that they weren't separated and sold individually. Obverse + reverse of coin 01 Obverse + reverse of coin 02 Two coins for the price of one....
That is interesting. Are both halves the weight of what a single tetradrachm should be? I've seen this happen quite often with modern coins, never and ancient one.
Wow, that's one hell of an error, something I have never seen before, especially for ancients. So, is the total weight for the two than 13.19g? Or is it 13.9g, each piece?
Yes, each one has the size and weight of a typical tetradrachm. I'm surprised that the auction listing didn't state two coins and give the size / weight of each along with photos of each.
Each one weights aprox. 13.2 g I just received them today so I haven't had time to take proper photos and measurements. Not quite sure how to display them either. I guess side-by-side in an all glass display so you can see both sides.
Nice, and why not use one of those see through thick holders, that Roma Numis. sends their coins in, from their auctions. I've always liked those holders.
