Leo I AE4, lion reverse.

DN LEO (PF AVG), pearl diademed, draped, cuirassed bust right
No legend, Lion crouching left, head turned, all within wreath.
Mintmark can be e.g. CON

RIC X 674 Constantinople, LRBC 2259, Sear 4340, Sabatier pl.VII, 10., Ratto 267, rated rare

Contributed by Vel Garnett.