Yes, it is highly unusual to encounter a profile bust
. One type
of profile bust
that is relatively common is a double confronted bust type
of Sts Peter
and Paul. Yours may have Saint Paul
, with the balding head
but I don't think you can be certain of that. There's no A in the monogram
, so the seal's owner can't be named as such.
Looking at the monogram
, there's more on the left side
than you draw. A T? Or a Pi? Or both of course. If there would be have been A, it would be beneath the omega. Also, on the right, I think that's more likely a K, not X.