I have what I believe to be a Byzantine Follis (but I could be way off base, here). I know very little about the Byzantine period and I am hoping that before I do familiarize myself with the period, someone may be able to identify this coin for me. It is AE20.3mm (at the widest point) and 3.06gm., (My apologies for the photographs - they were taken in a hurry.) (All help is appreciated.)
the "M" with the cross reverse makes me think it's a Byzantine, but i don't know what what to make of the obverse.
Arab Byzantine/imitative, perhaps? There was a recent thread about these-- maybe several threads. Here's one. Maybe it will help. https://www.cointalk.com/threads/arab-byzantine-reverses-for-fun.289297/#post-2621055
If you are looking for attribution, it's impossible to tell other than its a follis of Constans II. The date is in the exergue but is illegible. The officina may be a delta? The obverse is Constans holding a globus cruciger obliterated by the under type.
@TIF ,@David@PCC Thank-you very much for your assistance, here. At this stage, I just wanted to be able to write something on the 2x2, and now I can Thanks again.