Different Mint Mark (officina) [Resolvido]

for this Nummus - Crispus CAESARVM NOSTRORVM
https://en.numista.com/catalogue/pieces24279.html
exists different mint mark

RIC VII 181, A <-- the only one listed
RIC VII 181, B
RIC VII 181, G
RIC VII 181, D
RIC VII 181, E
RIC VII 181, G
(you can see its on http://www.wildwinds.com/coins/ric/crispus/i.html)

I have the "RIC VII 181, E" one

Didn't understand why 2 Gammas. But this file was locked before my nomination. I'm fixing this.

Citação: "chomp-master"​Didn't understand why 2 Gammas. But this file was locked before my nomination. I'm fixing this.

​...Didn't understand why 2 Gamma...

it's a my error
sorry