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A Question About The Letters/Symbols On The Field Of Coins.

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MetDet71's Avatar
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 Posted 03/17/2026  10:56 am Show Profile   Check MetDet71's eBay Listings Bookmark this topic Add MetDet71 to your friends list Get a Link to this Message Number of Subscribers
I am just in the middle of sorting some coins out for the dreaded bay and was wondering if it would be beneficial to potential buyers if I could extend my descriptions. Sometimes all I put is 'buyer to identify' purely for time reasons.


A-Question-About-The-Letters/Symbols-On-The-Field-Of-Coins.

This is not one that is going on, this is one from my own collection that I am keeping. The letters in the field are, I presume, Alpha and Gamma, 1 & 3 respectively. I also presume that this is to tell you more about which workshop/officina the coin was minted at. So my question is how do you work out the officina from these letters/symbols?
Thank you in advance,
Kev.
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Victor's Avatar
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 Posted 03/17/2026  11:22 am  Show Profile   Check Victor's eBay Listings Bookmark this reply Add Victor to your friends list Get a Link to this Reply
The letter in the left field is not a Greek alpha; but a Roman A; and it is the 1st workshop. This issue had three workshops-- A,B and C. The gamma in the right field is to separate this issue from the previous issue, that had an empty right field.

This series starts with a mintmark of TR and no field marks, so probably only one workshop.

Second, with three workshops, is A-C in left field.

Third is A-C/ gamma in right.

Fourth, with two workshops, is A-B/ star in right.

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MetDet71's Avatar
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 Posted 03/17/2026  11:26 am  Show Profile   Check MetDet71's eBay Listings Bookmark this reply Add MetDet71 to your friends list Get a Link to this Reply
Brilliant, thank you Victor.
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Root River Mint's Avatar
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 Posted 03/18/2026  10:32 am  Show Profile   Bookmark this reply Add Root River Mint to your friends list Get a Link to this Reply
I am amazed that this information is available. Can you tell me the sources, books, articles, whatever, that lists this kind of information and how it was determined?

Thanks!
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Victor's Avatar
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 Posted 03/18/2026  10:42 am  Show Profile   Check Victor's eBay Listings Bookmark this reply Add Victor to your friends list Get a Link to this Reply
You can find all this information, and much more, in Roman Imperial Coinage volume VI Diocletian to Maximinus
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 Posted 03/19/2026  7:40 pm  Show Profile   Bookmark this reply Add FVRIVS RVFVS to your friends list Get a Link to this Reply
Broke my promise to myself to refrain from 'splurging'
But this one caught my eye
And it was fairly reasonably priced .
I might have more than enough Galerius to occupy my time
But the "N" in field caught my eye
After the left facing cuirassed bust and the very unusual Rv legend break !
GENIOPO - PVLIROMANI
I honestly have never seen before
Hopefully the 'post' won't let me down
Also hope a long bath with improve Galerius' famous sour disposition

BI Follis Galerius as Augustus
Obv IMP MAXIMIANVS P F AVG
Laureate and cuirassed bust left
Rv Draped Genius standing left holding patera over altar and cornucopia
PLG in exergue N in field
Lugdunum (Lyon) mint
RIC VI 205
Struck early AD 307


I have seen CNG assign this one to first officina
But how they determined "N" is first is beyond my pay grade !

A-Question-About-The-Letters/Symbols-On-The-Field-Of-Coins.
A-Question-About-The-Letters/Symbols-On-The-Field-Of-Coins.
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MetDet71's Avatar
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 Posted 03/20/2026  10:07 am  Show Profile   Check MetDet71's eBay Listings Bookmark this reply Add MetDet71 to your friends list Get a Link to this Reply
Nice addition. Should clean up nicely, I do like the colour of it as it is.
No idea On the Field letter being workshop 1.
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Victor's Avatar
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 Posted 03/20/2026  11:03 am  Show Profile   Check Victor's eBay Listings Bookmark this reply Add Victor to your friends list Get a Link to this Reply
The N in left field is not a designation for the workshop. We actually don't know what most of the letters in fields are, except maybe for a few popular slogans like T F probably means TEMPORVM FELICITAS. The workshop is in the exergue for this coin-- PLG (or PLC) with the first letter being a P for PRIMA or first. The rest of the mintmark is the abbreviation for the city-- Lugdunum.

I have some N coins from Constantine I as Caesar


A-Question-About-The-Letters/Symbols-On-The-Field-Of-Coins.

Constantine I
A.D. 307
AE follis 25x27mm 8.2g
FL VAL CONSTANTINVS N C; laureate and cuirassed bust right.
GENIO POPVLI ROMANI; Genius standing l., modius on head, loins draped, r. holding patera and sacrificing over altar; in l. cornucopiae; N in r. field.
In ex. PLG
RIC VI Lyons 213b


now the reverse legend is shortened

A-Question-About-The-Letters/Symbols-On-The-Field-Of-Coins.

Constantine I
A.D. 307
AE follis 25mm 8.6g
FL VAL CONSTANTINVS N C; laureate and cuirassed bust right.
GENIO POP ROM; Genius standing left, tower on head, loins draped, r. holding patera over altar, l. cornucopiae; N in right field.
In ex. PLC
RIC VI Lyon 231
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jbuck's Avatar
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 Posted 03/20/2026  12:20 pm  Show Profile   Bookmark this reply Add FVRIVS RVFVS to your friends list Get a Link to this Reply
Enlightening .

It aligns with the mint mark information I had received from my brother (MARCVS OBLIVIVS)
The coin had been advertised as "Maximianus" follis
Somewhere in the past 50 years I had gotten it in my 'addled' brain that the P in mint mark was for pecunia !
Nevertheless comparisons seem difficult to find
I found only two others and they were attributed to RIC 227 !
But as they both had the same standard Rv legend break rather than GENIOPO -
I will stick to 205
For now !


I will attempt a superficial 'conservation'
But yes the colors have a cheerful (red green) Christmas appeal
A-Question-About-The-Letters/Symbols-On-The-Field-Of-Coins.
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Victor's Avatar
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 Posted 03/20/2026  1:23 pm  Show Profile   Check Victor's eBay Listings Bookmark this reply Add Victor to your friends list Get a Link to this Reply

Quote:
I found only two others and they were attributed to RIC 227 !


They were wrong with the attribution as RIC 227 has the shorter reverse legend of GENIO POP ROM.

The reverse legend break does not change the RIC number. The authors of RIC just didn't see any other legend breaks for 205. If you look in Bastien's "Le monnayage de l'atelier de Lyon" for RIC 205 (# 393 in his numbering) he notes 29 POP-VLI examples and 2 PO-PVLI



another N series I have that is not in RIC...it should be listed after RIC 231; but is listed in Bastien


A-Question-About-The-Letters/Symbols-On-The-Field-Of-Coins.

Constantine I
A.D. 307
AE follis 25mm 7.5g
FL VAL CONSTANTINVS N C; laureate, draped and cuirassed bust right.
GENIO POP ROM; Genius standing left, tower on head, loins draped, r. holding patera over altar, l. cornucopiae; N in right field.
In ex. PLC
RIC VI Lyon --; Bastien 411 (5 ex.)
Edited by Victor
03/20/2026 1:23 pm
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