This is an odd coin that was mixed in with a small bag of low grade ancients that I bought. It measures about 18 mm across and weighs 5.13 g. My first thought was that it resembled a Spanish cob (I think I can make out a “II” beneath the shield on the first side). The design on the back (?) is unfamiliar, however. There also appear to be very tiny characters etched on that side. (Which seems odd for such an otherwise rough coin.) I am curious to see if anyone knows what it might be? A counterfeit cob? A reproduction? A re-cut coin? Any ideas and insights most welcome.

