The lack of any coins with STR or TTR mint marks during this time leads me to believe that the P stands for pecunia.
Correct. Sorry for the confusion and the careless terminology.
Did someone say "error"? [ATTACH] [ATTACH]
Might as well add Proividentia to the show: [IMG] Billon Antoninianus Rome mint, A.D. 283-284 Obv: IMP NVMERIANVS P F AVG Rev: PROVIDENT AVGG -...
They have some value. They are in good-but-not-outstanding condition. Coins like these usually sell for between $5 and $15. The one on the far...
Many questions. For example, why did they stop indicating the officina during this time? The P does not stand for primera (or whatever the...
Are there many provincial coins that depict Caracalla as a youth on the obverse? All the ones I've seen show him as a rather surely-looking adult.
Yes, you are correct. Technically, the white paper is a diffuse reflector (as opposed to a mirror, which is a specular reflector). I have the...
I agree that the difference is more noticeable on the silver than the bronze. I'm sure I'll need to practice with the diffuser to get the best...
Final coin, a bronze nummus of Diocletian. Without: [ATTACH] With: [ATTACH] I don't see a whole lot of difference here, but I think I prefer...
Fourth coin, a Silver tetradrachm of Ptolemy II. Without: [ATTACH] With: [ATTACH] Seems like this might show more detail without the diffuser.
Third coin, a bronze of Pergamon, in rougher shape. Without: [ATTACH] With: [ATTACH] I can't see much difference here.
Next coin, a bronze of Philip II of Macedon. Without: [ATTACH] With: [ATTACH] I can't see a whole lot of difference here. Maybe the obverse with...
Here's the first coin, an Athenian tetradrachm. Without: [ATTACH] With: [ATTACH] I sort of prefer the obverse with the diffuser but the reverse...
I have the day off today, so I built myself a quick-and-dirty light diffuser with wood scraps and a sheet of white paper. [ATTACH] I cut slots...
Good point. If you're looking at a $15 bronze coin, good ahead and buy it. But your tetradrachm is a lot more expensive, so you should either: 1)...
Thank you for clearing up my confusion.
Agreed. But the ANT at the beginning of the right side obverse inscription confirms it as Elagabalus. My hunch is that it is legit, but I can't be...
This is one of those rare instances where, based on the photo, I am almost positive that it is legit.
I thought AR tetradrachms were usually around 16g. Could this be a different denomination?
Separate names with a comma.