Roman Coins of the Tetrarchy of Diocletian
& the Age of Constantine

The Background shows the Tetrarchy of the 4 Emperors

Reference page for latest styling & techniques

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Rome: Crisis II

Rome: Late Roman Empire

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Diocletian Emperor 284 - 305 AD nummus, bronze with silvered surfaces CNG fixed price list, 1989	Nummus or Follis? This coin was also referred to as a follis. Follis was used in past numismatic literature and most collectors were very familiar with the follis name. weight= 10.429 g unc with much original silvering on surfaces (as described by CNG).	There is an extensive discussion of Tetrarchy-era folles on Coin Talk: Roman Nummi (folli) of the Late 3rd - Early 4th Century Another thread on the same forum illustrates the history of the Tetrarchy nicely: Diocletian: Two Interesting Coins and a Legacy of Reform
Constantine Emperor 307 - 337 AD Nummus or follis, struck 307 AD Leu Numismatik, 4, lot# 741	Constantine Follis, bronze, 26mm dia, weight= 7.24 g According to "Coinage and History of the Roman Empire", D. Vagi, vol 1, p. 485, there were the following size changes in the nummis. Coincident with this were decreases in weight & purity: the small traces of Silver being replaced with Lead. Earliest, struck as Caesar, 306-307: 27-31 mm 1st size decrease: 307/308 2nd size decrease: 311/313 then, eventually becomming an AE3 at 17-22 mm 335/336 reduction to an AE3/4, 15-18 mm Around the time of Constantine's death (337AD) another drop to AE4, 10-12 mm These small coins were called a "nummis minimus"	There is an info website with an extremely good writeup on the Tetrarchy Roman coins of the First Tetrarchy: Diocletian, Maximian, Constantius, and Galerius

After the Tetrarchy and Constantine I

Coins of the 4th Century

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Constantine II Emperor 337 - 340 AD milarense, Harlan J Berk	weight= g
Julian "The Apostate" r. 360 - 363 AD follis 361-363 AD weight= 8.99 g Gorney & Mosch, auc 257, Oct 15,2018, lot# 986	There is also a website dedicated to the realistic style of portrait coinage temporarily introduced by Julian. Taking the bull by the horns from AncientWorldMagazine.com, Will Lewis, 16 Mar, 2018.	There is also an excellent book on Julian the Apostate "Some people are fond of horses, others of wild animals; in my case, I have been possessed since childhood by a prodigious desire to buy and own books." Julian the Apostate

Rome: Crisis II

Rome: Late Roman Empire

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