Quote:
Besides, my friend 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, does not it?
Yes, both coins say "struck in Constantinople" in Arabic, just like regular Ottoman Turkish coins do. But these "coins" are clearly not real gold, judging by the staining, and the Ottomans didn't issue any brass coins.
Coinage of the Ottoman Empire during of the reign of Mehmed II is very confusing, with numerous coinage reforms occuring, sometimes in overlapping periods. In Year 9, two gold coin series were being issued: the old gold rumi (which looked like
this, and the new gold rumi, which looked like
this. Your pic number 1 actually looks very similar to the
example shown in the Krause coin catalogue for the 2 rumi altin coin, which is also dated Year 9, although the lettering on yours is cruder.
In Year 20, two different gold coin series were being issued: the old gold aldi which looked like
this, and the new gold aldi, which looked like
this.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis