Very old coin? Or something quite different? Please help me! [opgelost]

Here is a pic of a coin. Sorry about the bad pic but this is the only image recognizable on this coin. The only thing close enough I could find by google was a coin about Tarantum Calvary.  Maybe somebody can help me with this! Thanks!

look under Russia - Empire and compare the size and weight could be one of those

That's exactly where I found it! Russia empire between the years 1766-1796! Thank you! Been looking for this all day!