Arabic silver(?) coin [решено]

Hi!
When I was young my late stepfather gave me a silver (he was a notorious liar, so I have no idea if it even is silver) coin that he told me he had found while on a diving trip. I recently found the coin again, and I got really curious about where it may come from or how old it is.

It weighs around 32 grams and is 44 mm in diameter and 2 mm thick.

I have no other information about it. I would appreciate any help in identifying it. Is it worth anything?





Thanks in advance for any help.

-Chris

Do you mind to use your scales again, since 32 grams is very heavy for a coin with that diameter and thickness....

The coin has been identified in the next message. The date is 1203. What looks like a 7 is an ornament V

Welcome to Numista!

Here's your coin

https://www.zeno.ru/showphoto.php?photo=66334

and

https://www.zeno.ru/showphoto.php?photo=67813

Ottoman silver, denomination Yuzluk, ruler Selim III, Istanbul AH 1203 (AD 1789)

It is peculiar that the date is written as 12037. The regnal year on your coin is 4 (about 8 o'clock on the second photo). The weight of 32 g is (somewhat surprisingly) correct, as this is a large coin.

Thank you so much :)