Elagabalus AE26 of Nikopolis ad Istrum. Legate Rufus. 

AV K M AVR ANTWNINOC, radiate, draped, cuirassed bust right
VPA NOB ROVFOV NIKOPOLITWN PR-OC IC-TR-ON, Serapis
standing facing, holding sceptre and raising right hand. 

Varbanov 4061 (same dies); AMNG 1900.

from Dane's collection, ex Terry King, Nov. 2011.

Note: Varbanov illustrates this coin under no. 4059 in error.