Do you know what the big copper looking coin is in the second picture? Most ancients I see are pretty small so that one interests me.
The siliqua is Julian II (FL CL IVLIANVS PF AVG). I see no reverse image on that, the Caracalla and the barbarous bronze so there is no help on those. The barbarous one could be of considerable interest depending on the reverse. The Julian siliquae tend to be VOTa in wreath types which are not all that interesting. The Caracalla is young Augustus and could be several reverses including some premium ones. Where was the reverse image? The Donative platform reverse on the sestertius is a special type but not really rare. People like it because it is complex and probably shows the event where it was originally passed out to some citizen. I have a similar Trajan. They are expensive in high grade with well struck detail but most are worn like this (or much worse) and I'd think $100 is fair over here. If you can get 40 UK pounds for it, I'd think that is a reasonable wholesale offer. Dealers expect a profit. If I found it, I'd keep it. Just how many decent surfaced coins do you get out of a hundred corroded lumps?
Cheers for the info Doug, the caracalla says "INCARTH" on it. I could do a whole field and I will only get junk, other times it will be junk plus blank Roman coins (I have hundreds) and if you are lucky...junk, blank Romans and an odd hammered or an odd nice bronze Roman, its totally unpredictable to be honest and around here so many detectorists have been over detecting the fields before I was born so stuff is running out I guess. I am only 19 but it has taken me what I class as years to find this lot probably over 9 years but I don't go out detecting all the time so I'm sure I could of picked up more and I have sold a few bits but I have luckily found the top 3 recently though. I also have a massive tin full of ww2 bullets, musket balls, buttons, pieces of lead....and so on and as for the Hadrian I will most likely keep unless I get a stupid offer for it because I would like a Saxon penny, nothing over the top just a cnut or aethelred ii
The seal matrix in the bottom picture looks interesting too - what is the pattern? (I have a friend who is a serious collector of those things...) Paddy
Indulgentia Avgg in Carth is a very common but still special 203 AD type for Septimius and Caracalla commemorating some favor awarded to Carthage in Africa. As I understand the matter there is no record of what it was but the fact that the lion is springing out of a running water source, it is suspected that Septimius improved the water system there. The coin is common enough that it should not draw a premium price but the goddess (Dea Celestis) riding a lion is a lot more interesting than many standing figures of personifications that compete with it for your cash. The coins are more common for Septimius but Caracalla is far from scarce with the reverse. They also come as asses and have a minor variation (considerably more scarce) showing the goddess holding a drum rather than a thunderbolt.