Okay, I give up. I have most of the usual Byzantine coin books and the entire web at my disposal, but in four years and I have not found anything like this coin. It is an imitation of a Byzantine anonymous bronze, but with very usual "lettering" on the reverse. 28-27 mm. 7.58 grams. Base metal, less coppery than most Byzantine "anonymous bronze." The obverse could be Class A2 or Class E. The key difference is that class A2 has a four-line reverse legend and Class E has a three-line reverse legend. This one has three lines, but E is much scarcer than A2 so A2 is more likely to have been copied. Maybe it is just an approximation of A2 by someone who was not going to do the legend correctly anyway. With imagination I can see a few letters (at least "E", maybe "SILE") that might be part of "BASILE" in the middle line. I spent years thinking some of the letters looked like those on Armenian coins (which I can't read) and wondering if it could be an Armenian imitation. Then I wondered if the letters could be Georgian (from the Caucasus, not the one north of Florida). Has anyone seen anything published that is remotely like it? I am accepting advice about where to look next. If you have any odd Byzantine-like coins, feel free to post them.