Just as the title says! I saw told he was 13 when I bought him. The vet said 12 and dentist said "he's around that". He wasnt very cooperative for this so appologize for some fuzzy pics. He also hates his mouth touched. I think someone did some not so nice things to him. He also has some chips in his fronts.
I would also say around 12, and unfortunately - that's the best it's going to get. You've got the beginning on galvaynes groove on both sides - which shows up around 10, and an 11 year hook visible in one pic - which can stay into the teens. I would go with 12! You could possibly get a more accurate age by looking at the cups (or lack of) on the surface of the teeth.