After carefully looking through Sylloge Numorum Arabicorum Tubingen, Gazna/Kubul, XIV d Hurasan IV
, I can't find this coin, which is very unusual.
From the inscription
on the image on the left (the reverse
), I have serious doubts this is a coin of Mas'ud I. Mas'ud I does not have a second line from the bottom like yours. Also the starting character's style
for the third line from the bottom is different than on yours. The reverse inscription
matchs early coins of Mahmud much better. But, then I can't find a match with Mahmud either.
You will need an expert to look at this coin. Or at least someone that can read the inscription