Hi Mohamed --
What a gorgeous coin you have! Egypt 10 piastres. I like the eye appeal on your coin better than the uncirculated one in my picture.
Your coin is probably worth $12 US dollars or so. The one in my picture is fully uncirculated and sold for $32. Here is the description when it was at auction:
Katz Coins Notes & Supplies Europe s.r.o. - E-Auction 42, Lot 2017
Egypt 10 Piastres 1939 AH 1358 KM# 367; Silver; Farouk; UNC Starting Price: 5 EUR...