Here's a fairly rare emperor.
I've been getting more provincial references lately, like RPC and SNG Copenhagen. Lots of them are available online though, like --
AMNG I/I -
https://archive.org/details/p1dieantikenmn01akaduoftRPC --
http://rpc.ashmus.ox.ac.uk/Aemilian
A.D. 253
Moesia Superior, Viminacium
24x26mm 7.8g
IMP C M AEMIL AEMILIANVS A[VG], Laureate, draped, and cuirassed bust right.
P M S COL VIM, Moesia standing between bull standing right and lion standing left.
In ex. AN XIV
RPC 89; AMNG 179