Those are definitely not Spanish coins, mainland or colonial. They look like Polish minors. FYI, here are a couple of Spanish colonial coins, 8...
Thank you, Al. I guess that I'm back to tridrachm with this coin. There are notable differences between the dies used for the tetradrachm, so...
Here's a tridrachm of Trajan, Cappadocia-Caesarea, 98-99 AD. 9.9 grams [IMG]
For comparison, here is an image I got online of a Trajan fourre tetradrachm RSC 53 type, weighing 9.87 grams. [IMG] Given the feedback so far,...
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