Gallienus AE Antoninianus. AD 253-268. Struck AD 268. Uncertain mint in Asia Minor. 22 mm, 4 g.

GALLIENVS AVG, radiate, cuirassed bust right, two dots beneath the bust. 
P M TR P XVII, lion walking left with bucranium before.

Mintmark SPQR. 

RIC 605; Goebl 1540Ce

With permission of Numismatik Naumann auction 65, Lot 707, May 2018.