Weighing 2.12 g., the following Byzantine "coin" seems to be made of glass. Anything but not a metal. Thus I conceived that it might be an ancient token or maybe some sort of an icon ! The cross is clear and visible on obverse, as well as the letter M to left of cross. The reverse is completely covered with a very thick white layer. I didn't touch it yet. Please post any suggestion or comment if you have. Thank you.
I thin it's a glass weight 7C, I've seen some stuff like that shopping around on vcoins. Oh yeah, check out this museum blog post, there is one that looks just like it. https://blog.peramuzesi.org.tr/en/sergiler/bizans-cam-agirliklari/
Thanks a lot C71. The link led me to a blog at "Pera Museum". So it's a glass weight which was used to weigh gold coins. Byzantine, 6th -7th century.
