I got a kick out of this listing- "This coins is not published in any catalogue I have"
The important bit being "any catalogue I have"
It is RIC VII Arles 287 and while it is listed as an r5 in RIC, the opening bid of $200 is probably a bit high.
Ferrando downgrades the rarity to r2 (#790)
Crispus
A.D. 325- 326
CRISPVS NOB CAES; Laureate, draped and cuirassed bust left.
PROVIDEN-TIAE CAESS; camp gate with two turrets and star between them.
in ex. TA crescent RL
RIC VII Arles 287