Watch List notes:

GALATIA. Ancyra. Caracalla, 198-217. Hemiassarion (Bronze, 19 mm, 4.48 g, 1 h). M AY ANTON Laureate bust of Caracalla to right. Rev. ΑΝΚΥΡΑC Winged Genius standing to left, resting on low column before him, set on a low altar. Seemingly unpublished. Another example appeared in CNG 54, 2000, 1078 as part of lot. Extremely rare. Good fine.
From an American collection.

The reverse type, unpublished for Ancyra, was particularly popular in Thrace.