Watch List notes:

Sasanian Kingdom. Yazdgard I. A.D. 399-420. AR dirhem (29.5 mm, 4.19 g, 4 h). AT (Atrapatan) mint (see note). in Pahlevi, Within single-circle dotted border, crowned bust of king right wearing necklace and elaborate headdress with large crescent above forehead formed by two curved merlons. / anepigraphic, Two standing attendants, each holding long scepter, face each other across fire altar of Ahura Mazda; above flames, three crescents & two pellets; small crescent above each attendant's head; illegible mint city name on right, illegible date on left. Gobl SN I/1. Good EF, Spotless and quite attractive within its sphere; perhaps slightly overcleaned for some tastes.

This was part of a lot in which the other pieces were all AT mint, although this is obliterated on this coin, it can be assumed to also be AT