Cool lookin' coin (nice eye-appeal with the green patina ... is it really that cool colour?) Oh, and good job with the ID, THCoins
The obverse clearly shows CONSTANTIUS NOB C. The reverse is a campgate & again you can clearly read the legend. If you go to Wildwinds http://www.wildwinds.com/coins/findstr.html you can look-up the coin.
I believe the last coin to be Constantius II AE3 Cyzicus RIC VII 38. AD 325-326 . OBV: FL IVL CONSTANTIVS NOB C, laureate, draped & cuirassed bust left REV: PROVIDEN-TIAE CAESS, campgate with two turrets & star above, SMKE dot in ex.
I see it as year 7. When the top of the letter is curved over it is a 6. Five is open top u and was not used by Justin II according to the Sear Byzantine 361 (page 85) listing except alone as year 5. The 6 numeral was not very long lasting The delta shows it was the fourth officina of the mint at Constantinople. I'm sorry I don't have a Justin II year five to show. Below is a year 6 of officina E (5). There are coins with year GIII and year X but there is no listing for a uIIII confirming the intent of the G was 6.
I did also at first, you could be correct. I couldn't tell if it was 6 +1 or 6 with a "rim" fragment...the outer circle is thick above and thin below. now that I look at it again, it doesn't curve at all...so i'll put my money on 6+1 as well.
This latest coin is Constantine I, but I am having some trouble fully attributing it. I think it to read: OBV: CONSTANTINVS AVG, laureate head right REV: D N CONSTANTINI MAX AVG, wreath containing VOT/dot/XX, SMHGamma? in ex.
The reverse photo should be rotated 180-degrees. Your coin states VOT XX in the wreath. If you type the other partial words into Wildwinds, you will see many coins to which you can compare your coin.
numiz => wow, your coins always have such a cool greenish-yellow patina (sweet eye-appeal) ... Oh, and the reverse is quite interesting ("baby got back")
Your last coin is Greek. I didn't know it, but was fairly easy to attribute. On the bust side the lady? seems to be wearing a turreted crown. So this could be Tyche, but not sure. On the other side the text on the rigth reads Apamea : that's a city name. With these two names it took me 5 minutes and mr Google to tell me that the male satyr who's backside Steve so admired is named Marsyas. And he is playing the double flute, untill he finally lost a music contest from Apollo. This should give you some headstart in further attribution !
Very good detective work THC. I thought the reverse side looked like someone, male or female, playing a double flute. However, I was uncertain of anything else. I have a Roman Republic coin depicting Marsyas, who, by the way, was tied to a tree and flayed alive by Apollo.