Watch List notes:

OTTOMAN TUNIS
Mahmud II (1223-1255ah / 1808-1839ce)

2 riyals 1244ah (1828ce) Bi 23.29g Fen 230, KM 93 bold xf

Any coin minted in Tunis which displays the sultan's turgha on the obverse is extremely rare. See Fenina, pages 157ff.
Ex Spink 133: 167