Three 1476-1516 Doble Excelentes - Sevilla - Seeking Information

https://www.coingallery.de/KarlV/Catolicos_E.htm

The above reference seems to indicate that the Castellanos were gold coins minted between 1475-97 and the Excelentes date after 1497. The Ducatos appear to have been issued outside of Castilla and Aragon, in places like Valencia, Naples, Barcelona where it was also called the 'Principat' in addition to the Ducat and in Mallorca.

Fernando apparently also ruled over and issued coinage in Navarra, Perpignan (France), Zaragoza, Messina (Sicily), and Cagliari (Sardinia).

Hey @ns, I've had a chance to look at my Cayon and Cayon. I agree that there are a bunch of variations of these Double Excellentes (19 of them in C&C). As @tdz mentioned, there are some differences in the inscriptions, but in C&C, these variations primarily are identified by the number of dots around the mintmark S as well as the mark directly above the mintmark. This can be a star (like on your second coin), grape leaves, parsley leaves, one or two crosses, a letter X, or missing entirely. Some variations have the same upper mark, but with different numbers of surrounding points. It looks like the attribution is somewhere between C&C 2773a and 2790. My best guess is that your first coin is #2785 (five dots) and your second coin is #2787 (star plus 4 dots around the S). I'm interested to see what you think when your own copy of C&C arrives.