Your ancient coin collecting options are limited then...remember this is the ancient coins board. ;)
Nothing to do with the poor communication from the dealer (for which there is no excuse) but you should have talked with the seller before...
the first one is not a follis-- [ATTACH] Constantius I AD 296- 298 AR Argenteus 18mm 2.7g CONSTANTIVS CAES; Laureate head right F ADVENT AVGG...
If anyone was wondering what an unofficial coin slab looks like, I have two examples...though I took these out. [ATTACH] [ATTACH]
Two things should immediately give this coin away as unofficial...PTR as the mintmark, though it should be more like TRP. The standard has an X...
This Licinius would have been an illegitimate son, not the same as on coins.
A speculative reason may be the victories of Crispus over the Franks and Alamanni in a series of campaigns that started in A.D. 318.
Official means that a coin was struck by a Roman mint. Unofficial means that it wasn't struck by the mint....
This coin was listed in RIC VII as Heraclea 50 by Bruun, because he thought the mintmark read SMHTA instead of SMATA. This error was addressed by...
Here's an unofficial coin that was slabbed. It's in pretty good style and managed to slip through as official. [ATTACH] [ATTACH]
You probably already know; but it's listed in Zschuke-- Die Bronze--Teilstuck-Pragungen der Romischen Munzstatte Trier; who also references Cohen...
This coin has IIII before VIR and means the 4 men, or moneyers who were allowed to strike coins for the year. More often you see 3 men, like the...
Constantine from Antioch with the reverse smoothed and some graffiti [ATTACH] Theoderic. Æ Decanummium Converted to Weight (17mm 2.9 gm)....
here's a group of Ex-Peter Weiß coins [ATTACH]
Note that the quote you supplied is not that Decentius did not mint coins at Ambianum; but only about this specific mintmark AMB dot in crescent.
[ATTACH] a Constantine medallion with PIVS FELIX from acsearch-- Medallion of 9 solidi, Trier circa 310, 40.26 g. IMP CONSTANTINVS PIVS FELIX...
It's not much to look at-- [ATTACH]
an older certificate from 1978-- [ATTACH]
Though atelier can translate to workshop, I believe it is most frequently used to mean the entire mint. For example-- Bastien's series Le...
The number of layers does not change the RIC number, it is just something that some note.
Separate names with a comma.
