Help Out 4 Large Roman Coins

I recognized some of the emperor names, but I found the last coin with the woman most interesting. Is that Roman, or from one of the provinces? The hair styling looks vaguely Egyptian. Just guessing here!

The third may be Maximinus Daia (305-313 A.D.)

Cool that you actually found these yourself! They're far more interesting than the coins I usually see in shops. What do I know...I just thought it unusual for a woman to be on a coin from Rome itself.
Also, the object winding up her head could be a cobra, and the fan-like object on the back of her hair looks like a papyrus, a symbol of the Nile. Both are motifs used by rulers in Egypt even into the Greco-Roman period.

#1: Emperor Philip I, sestertius, Sear# 8995, FIDES EXERCITVS (faith of the army), four military standards (including one with an eagle), SC in exergue. Sear gives the refs as RIC 171a, CV $135 in VF. Dated to 249 AD. Wildwinds page.

#2: Emperor Constantius I, large follis of Carthage. Reverse is a common Carthage type: SALVS AVGG ET CAESS FEL KART, Carthage standing with fruit. I have a Maximianus of this reverse type. The obverse is of Constantius I as Emperor (305-306 AD), but I can't find an exact match on the Wildwinds page; the one listed there for Carthage shows Constantius as Caesar.

#3: Maximinus I, sestertius. Reverse: PAX AVGVSTI, Pax standing, SC in field. Similar to the one listed in Sear as #8332, dated to 236-8, CV $60 in Fine; the difference is the obverse legend is Type A, not Type B. Example on Wildwinds, which was referenced as RIC 60.

#4 is Roman, too. That's not snakes or reeds, that's just a fairly typical female hairstyle for mid-period upper-class Rome. The coin is in the name of Herennia Etruscilla, wife of Emperor Trajan Decius. Reverse: PVDICITA AVG (the modesty of the empress), Pudicita seated, holding veil over face. Sear# 9505, dated to 250 AD, $150 in VF, RIC 136b. There's quite a lot of exampled of these on Wildwinds.

Coins 1, 3 and 4 "belong together" in the sense that they could have circulated side-by-side, and been buried or lost together. Number 2 does not belong with them - it's from an entirely different time period and monetary system.

Now this is what I call a reliable source of information, Thank you very much Sap I new I could count on seeing your reply post.