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Quality shown in the photo: AU(55-58)
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Postumus, Antoninianus, 262-263

Trier - Billon - AU(55-58) - RIC:93

Quality AU(55-58)
If you so wish, you can order a certificate of authenticity or grading for this collectible item after adding it to your cart.
Detailed description

Mars, standing right, holding spear in right hand and leaning on shield with left hand

Cf. Mairat 2014 (unpublished, online), 245, for mint & date.



3.38 gr

  • Denomination: Antoninianus
  • Year: 262-263
  • Mint name: Trier
  • Composition: Billon
  • Diameter: 21.9
  • Empire, kingdom, or civilization: Ancient Rome, Roman Empire (27 BC – AD 476)
  • Main character: Postumus
Collectible item references
  • RIC: 93
NumisCorner catalog reference: 1275874
Postumus, Antoninianus, 262-263, Trier, Billon, AU(55-58), RIC:93

Guarantees of authenticity

Our family business has been completely dedicated to numismatics ever since its founding in 1977.


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  • Refund of the order if a recognized authority casts doubt upon the authenticity of the item
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  • Optional grading is available after adding the coin to your cart
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International authorizations

We are members of the major international numismatics organizations

  • American Numismatic Society (ANS n°11680)
  • American Numismatic Association (ANA n°3175551)
  • Asian Numismatic Society (ANS)
  • International Bank Note Society (IBNS n°11418)
  • Paper Money Guaranty (PMG n°3721)
  • Professional Coin Grading Service (PCGS n°1048758)
  • Numismatic Guaranty Corporation (NGC n°3721)
  • Official reseller Monnaie de Paris
Postumus, Antoninianus, 262-263, Trier, Billon, AU(55-58), RIC:93

Deliveries and returns

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Delivery options and costs

Conditions for a simple letter:

  • Abroad: €4,95 if the order is under €150
  • In France: €4,95 if the order is under €50

Condition for a registered letter:

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  • In France: €4,95 if the order is over €50

Condition for an express shipping:

  • For all destinations : €25 for all the orders

Delivery times

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In the majority of cases, your order is shipped within two to five working days once the payment has been verified.

Please note that 100% of the articles included in our catalog are in stock and available for immediate processing.


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You are free to change your mind and return your order within 30 days.

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Postumus, Antoninianus, 262-263, Trier, Billon, AU(55-58), RIC:93

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Postumus, Antoninianus, 262-263, Trier, Billon, AU(55-58), RIC:93

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With this collectible item, you also acquire:


  • Emperor of the Gauls / Roman usurper: AD 260–269
  • Period: The Thirty Tyrants

Marcus Cassianus Latinius Postumus’ date of birth is unknown to us and his origins remain a mystery (probably Gaul). Governor of a province in Gaul, he helped the emperor Gallienus to repel Frankish attacks on the borders of the empire. Galvanized by his success, his troops proclaimed him emperor in 260.

However, unlike others before and after him, instead of claiming the entire Roman Empire, he was content to create the Gallic Empire and establish its capital at Cologne. And the Roman Empire was sufficiently unstable so that in the absence of recognizing a certain legitimacy to him, Gallienus granted him a certain peace. While the army made him emperor, it was also the army that assassinated him in 269 following a sedition when he tried to dissuade his troops from looting the city of Mainz.

Economy and currency

Although his reign was partial and its legitimacy altogether relative, Postumus proved relatively active where money was concerned. The emperor of the Gauls was quite Roman in spirit, and so was his currency. Having at his disposal silver mines in Spain and his territory containing two large mints at Cologne and Trier, he issued aurei and Constantinian coins of superior quality to those struck by Rome. This allowed him to curb, for a time at least, the rampant inflation. On the other hand, his double sestertius in bronze was a failure, proving not heavy enough compared to the “simple” sestertius.

Picture: Engraving from the book "Portraits of Roman Emperors" by Giovanni Battista de'Cavalieri (1592)

An “AU(55-58)” quality

An “AU(55-58)” quality

As in numismatics, it is important that the state of conservation of an item be carefully evaluated before it is offered to a discerning collector with a keen eye.

This initially obscure acronym comprising two words describing the state of conservation is explained clearly here:

About Uncirculated(55-58)

This means – more prosaically – that the coin has been in circulation but sufficiently little that its original beauty is preserved almost in its entirety. The wear is barely visible and any other defect can only be identified with a magnifying glass or a particularly keen eye. The number (55-58) indicates that between three quarters and almost all of the original luster remains.

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