My friend actually found another very similar item.
The material and the size look the same. Reverse (3) with unusual Arabic inscription (Ibrahim Adli, as my friend with Arabic language skills reads it) is also the same. But the side which matches Ottoman coins pattern is different. It is apparently from 1223AH/9 (1).
The strange thing is that I have never been able to find any Ottoman coins of those two years anywhere on-line – I mean 1223AH/9 (1) and 1223AH/20 (2). I found one very similar but from 1223AH/11.
Does anybody have any pictures of Ottoman coins for these years?
I still could not find corresponding catalog with free access and frankly speaking a little reluctant to buy a new just for this purpose.
Besides, my fried reads inscription on the coin-like side (1, 2) as Konstantinus – this means that these coin (or original prototype) was minted in what is currently Istanbul, doesn’t it?
By the way, other people suggest that these items are actually replicas from Ottoman coins, which were used as some kind of jewelry or other imitation of gold coins. Such things usually come with wholes – ready to wear. My friend’s items do not have a hole, but maybe it disappeared when the items were re-cut to smaller size. What is your opinion about this idea?