So I’m through all my die counting and math add now need to write some interpretation of what I’ve found.  I was hoping to replicate the black magic of the last post in my count of RRC 383/1, instead I found a complicating set of data.  So RRC 383/1 is famously 1 countermark 1 die and is numbered first 1-170 (Crawford only knew through 169) and also A1-A129.

Again using the Schaefer’s Archive I ran Esty’s statistics.

What I don’t love is that Esty’s model predicts that we’re missing 25-36 dies.  Counting unattested numbers in each sequence I predict 47 dies are missing.  Not that close, not that close at all…

I might (I fear) have to talk to a statistician to try to understand what is going on.

My mind is literally blown.

I’ve just run the counts and the stats of RRC 282/1b where the reverse dies have letters and numbers.  Along the way I counted dies missing in the sequences.  So where letter of the alphabet or on number in the order was not in Schaefer’s archive but would be predicted logically to exist.  I found 35 die names that I would predict to exist that I’ve not seen (yet).

Esty’s formula would estimate with 95% accuracy that we are missing 34-23 dies.

This is pretty damn close and makes me exceptionally relieved.

But those of you in the know are saying  What?! How can that be?! Crawford says that there are more than one die be controlmark?! This is true and untrue.  Leaving aside 382/1a which you’ll just have to wait to read about in this article, on 382/1b repeats (i.e. multiple dies with same symbol) are unknown for alphabetic controlmarks and are exceptionally common for dies below xxxx in numerical control marks (80% of the numbers are known to have more than one die. Most have only two dies: there are only four numbers that have 3; none have more) BUT exceptionally rare for xxxxi-ccxxvi (only 2 instances or just over 1%).

I have never been so glad I spent an incredibly boring morning counting and checking through a batch of coins.

 

I’m so grateful to know that this specimen exists to confirm the photoI posted from the Schaefer archive that is in the Pushkin museum.  I’m also regularly astounded how this blog helps me source information and connect with other enthusiasts.

This is all in the works for a peer-reviewed co-authored journal article but I wanted to blog about it to get thinking and write out my initial reactions.

I’m using Esty’s formula to estimate the original number of dies using Schaefer’s photo archive.

And the results bother me slightly.  There are very few singletons.  18 if one includes everything, 12 if one is really feisty and excludes everything that looks a little ‘off’.  Statistically for coverage it doesn’t really matter:

The thing that bothers me is the estimate of total dies and the assumption that we’re missing between 33-35 dies.  The reason this bothers me is because one of the dies has a number 246 as its symbol.  And it feels like the number should be the last die carved, but that is an assumption based on nothing but a sense that if they were going to abandon symbols and do a number, a big number that number would be the last set of dies carved.  line of the chart above is how many specimens would need to be observed without any new dies found to make the estimated total number of dies match the number on the coin.  It’s 3 times the number of observed  coins so far.

 

I’m checking singletons in the RRC 384/1 Papius series to make sure they really are singletons.  This one was a puzzle but with the help of Twitter, esp. Ethan Gruber, I think we have an answer.  On the left a bunch of dates and on the right a fowl ready to be eaten.

Selection of Recipes from Alpicius with two ingredients:

So I’m guessing these symbols refer to the drinking of calda (calida), a hot beverage typically of diluted wine.  Not fancy stuff, but the type you’d get in a cheap thermopolia, the ladle protects the server’s hands and the handle on the tankard that of the drinker.

Papius, RRC 384/1, control mark no. 174

See previous post for type and controlmark info.

Links and keywords updated 3.6.26.

I was looking through transcription data for the Schaefer files and thought this was an error in the spread sheet but NO it really exists and is a die match.  At first I assumed it must be a bad fake.  Plated specimens of the type are known.  However, I think someone in the Roman mint just messed up and combined a reverse with the wrong obverse.

So I’m teaching the six day fire of Rome in the reign of Nero in 4 hours.  I thought I’d mug up a bit on the history of fire-fighting at Rome so that I could answer questions and contextualize (and anyway I like the republic best so often end up looking backwards in my Empire course).

Everyone KNOWS that Crassus is where the history of fire fighting starts in Rome.  (I thought) I knew this too this morning when I went to check references.

I teach from primary sources so I needed a reference.

Plutarch, Life of Crassus 2.4 reads:

…observing how natural and familiar at Rome were such fatalities as the conflagration and collapse of buildings, owing to their being too massive and close together, he proceeded to buy slaves who were architects and builders. Then, when he had over five hundred of these, he would buy houses that were afire, and houses which adjoined those that were afire, and these their owners would let go at a trifling price owing to their fear and uncertainty. In this way the largest part of Rome came into his possession. But though he owned so many artisans, he built no house for himself other than the one in which he lived; indeed, he used to say that men who were fond of building were their own undoers, and needed no other foes.

Frier, Bruce W. “The Social Institutions of the Roman Rental Market.” In Landlords and Tenants in Imperial Rome, 21-47, quoting from p. 33-34. Princeton: Princeton University Press, 1980. doi:10.2307/j.ctt7ztrw9.8.

So where the heck did Crassus the fire fighter come from in our historical “truths” ?! Once I figure it out I’ll let you know. …

Okay, now just one hour to class time but I chased down another reference, but it still doesn’t actually suggest Crassus did this for profit, but rather self protection like many private house holders (Juvenal 14):

AND when you combine this with the statement in Justinian’s Digest (1.15.1) that there were for profit fire brigades the assumption that Crassus operated one makes more sense, although we don’t really have any direct testimony that he did.

 

RRC 419/2 was probably only struck by between 10-13 obverse dies.  We know 10 of them.

Blue are obverses and green are reverses.  I’ve excluded plated coins (there are 4 or so documented in Schaefer’s archive).

Line thickness is proportional to specimens known with that link.  This issue was probably made near the same time as RRC  419/1 (see previous posts).  Given the high degree of interconnectedness and the way in which the number of reverse dies so closely match the obverse, I find it easiest to imagine the die engraver being told we we’ll need a dozen pairs of dies for this type and them arriving at the work station(s?) in two boxes.  It looks to me that there must be a die box not just for the reverses but also for the obverses.  Both obverse and reverse dies pair on average with 2.3 different dies.