Although Byzantine experts do not get called upon very often here on CoinTalk, you possess knowledge that is very specialized and not widely known to either Classical or Medieval collectors. For that reason you are a valuable asset held in high regard by this forum. What can you tell me about this coin? It has a weight of 4.2g and is 25.75mm in diameter at the widest point. Thank you in advance!
It appears to my (untrained in the way of all things Byzantine) eye to be a AV Hyperpyron of Andronicus II and Michael IX, issued AD 1295-1320 SB-2396.
It looks like a Palaiologos style and has more clear letters than most but these are so far out of my area I have no idea.
Aethelred beat me to it but this appears to be similar but weak in the legends compared to the OP coin. https://www.cgbfr.com/andronicus-ii...x-andronicus-ii-hyperpere-ttb,v38_1448,a.html
The four towers on the obverse (as opposed to six) means it's late in Andronicus II/Michael IX, or it could be Andronicus II/Andronicus III, or (rarely) John V/John VI. Enough legend is visible on the right to see it's Mike there, so: Andy & Mike. The sigla on the obverse confirm this ID, there's a star at 8 o'clock above a K at 7 o'clock. That fits sigla 183-189 in Simon Bendall's paper here. These are very difficult and it's a good thing that there are several indicators that can be used!
Sorry, I was suckered again. I really need to pay more attention to the names and dates rather than assuming.
I love what I do and look forward to every new day, but the least favorite part of it is the "I have been looking through my pennies and I've found 114 double dies, I want to show you every one of them."
The best part is when you tell them it is just a cent and they can spend it and they tell you "no, it you look at it in direct sunlight, upside down, with only your left eye, while standing on your right foot and rubbing your belly, you can see doubling." Priceless!