Aha, then no, that is not the ticket. These are two different
seals. The
monograms on the
obv. are standardized and occur on thousands of
seals. The
reverse is where the
attribution has to come from.
I read ΠETP on the first line, which must refer to the personal name Petros. On the second line, the first letter is unclear. Then I read ΠATP followed by a vertical stroke, which is an abbreviation mark. This is Peter's court dignity of 'patrikios'. Below you can read CΠAΘ 'spath', which must refer to another court dignity, but which I am not sure because of the corrosion. Probably he was an imperial
spatharios. I can't make sense of the last line.
Regards
Gert