Hi
Peter,
Welcome to FAC with your first post. First of all, in the future, please add
diameter to your id requests. It's impossible to see from a photo and it can be important to find an answer to your question.
Your seal is relatively well published. It belongs to a person named Apnelgaripes, who held the high rank of 'magistros'. The
obv. shows a standing saint George, the
reverse reads "Lord aid your servant Apnelgaripes magistros" in Greek. Published in
Zacos II no. 362 (a-c),
Seyrig coll. 40. Apnelgaripes is originally an Arab name. Can be dated last third of the 11th century.
Regards
Gert