Probus 276-282 A.D Reverse- Clementia temp Obverse- probus standing right holding sceptre receiving victory from Jupiter standing left holding sceptre. Mint mark-xxl I love the red that it has on this coin!!!
You will surely like this old article from @dougsmit about the XXI « mintmark ». https://www.forumancientcoins.com/dougsmith/feac73xxi.html
Not bad! Your coin is from the Antioch mint (RIC V Probus 922; see here). The H on the reverse means that this coin was produced by the 8th officina (workshop) of the mint. The H or eta is the 8th letter of the Greek alphabet. The XXI probably means that your coin was struck from an alloy of twenty parts copper and one part silver. You can find more information on this here. I have your coin's "cousin" from the Tripolis mint. The KA on my coin is the Greek way of writing "20:1" or "XXI." K is the Greek numeral for 20, A stands for 1: Probus, Roman Empire, AE antoninian (traces of silvering), 276–282 AD, Tripolis mint. Obv: IMP C M AVR PROBVS AVG, radiate, draped and cuirassed bust right. Rev: CLEMENTIA TEMP. Emperor standing right, holding eagle-tipped sceptre, receiving pileus from Jupiter, holding sceptre. Crescent in lower centre; in exergue, KA. 23 mm, 4.13 g. Ref: RIC V-2, 928 (crescent).
