A rare circa 37 to 38 A.D. bronze sestertius of Roman emperor
Caligula realized a hammer price of 600,000 Swiss francs ($633,700
U.S.) in an Oct. 20 auction conducted jointly by Numismatica Ars
Classica and Tradart.
Lots were subject to buyer’s fees ranging from 19 to 21.5 percent,
depending on bidding method. The winning bidder's bidding method was
not revealed, so the total cost of the coin could not be computed.
The coin highlighted the second part of the JDL Collection of Greek
and Roman Coins, an offering of 45 lots that in total realized
1,826,500 Swiss francs (about $1,929,090 U.S.).
Though the coin features “a portrait of enchanting beauty and the
work of a very skilled master-engraver,” according to the auction
catalog, the coin is notable for what it does not have, and what that
indicates about why it was issued.
Many Roman coins bear the giant letters SC, shorthand for “senatus
consulto” or “senatus consultum.” The fact that they are missing from
this coin suggests that the coin was not issued with the approval of
the Roman senate. This was an obvious statement of authority by the
fairly new leader Caligula.
“There is no reason to believe its exclusion was accidental,”
according to the catalog. “The inescapable message to the senate was
that the emperor’s newfound authority was assured by his relationship
with the [prateorean] guard.”
Tiberius died in 37 A.D., perhaps with the aid of Sertorius Macro,
who had authority as a prefect in the prateorean guard; Macro then
offered his support to Caligula, who received full authority from the state.
Tiberius’ will allocated 1,000 sestertii for each guard, an amount
that Caligula doubled upon realizing that his power rested largely in
the support of the guard.
These payments were handed out during a ceremony that is presumably
pictured on the coin’s reverse, where Caligula is shown standing
before the seat of the army chief, delivering a speech to five
soldiers. The inscription ADLOCVT COH describes the image, the
abbreviation identifying the adlocutio (speech from the emperor to his army).
The coin is “extremely rare and undoubtedly the finest specimen
known of this issue and one of the best sestertii in existence,” with
a centered strike on a large flan.
The auction firm reports that it is Good Extremely Fine and exhibits
"Tiber toning," meaning that it could have been recovered
from soil such as is found along the Tiber River.
To learn more about the auction, and to see other prices realized,
visit the Numismatica Ars Classica website.
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