Byzantine Seal of Ioannes Anthypatos? 23.11 mm 8.18 g 7th Century?

[pogh_poor]

I have acquired a nice addition to my collection of Ioannes/John seals.  It measures 23.11 mm and weighs 8.18 g. 

On the obverse, there is a block monogram which I believe solves

ΙΩΑΝΝΟΥ

On the reverse, there is


    
    
    

All within a beaded ring

So I believe that the seal is of Ioannes anthýpatos.  Am I correct?  Is the dating of the 7th Century?  When did the use of block monograms disappear? 

[Gert]

Yes, John anthypatos, which is what the Romans called a proconsul. In early Byzantine times, these men were provincial governors like the Roman proconsuls were. I think the seal has wreath borders, not pearled borders. Block monograms disappear over the 7th century, so yes, your seal must date from about then.
Regards
Gert

[pogh_poor]

Thank you Gert.

You are right about the seal having wreath borders. Pogh_poor