Easy quiz question: what is it that makes the two coins below so exceptionally rare (related to this topic)? I'd like to hear answers from those who have to think through the answer (for some of us it will be instantly obvious) as there is real numismatic learning here.
I have no idea... The first is not well centered and it doesn't have an unusual artistic style (my opinion). There is something strang on the obverse (above the three vertical lines) (?)
Also the second coin is quite normal to me. That brownish patina maybe? Is it a fourrée? I have really no idea...
Anyone else have an answer? It's necessary to know these specific types (Koson stater, Cassius Tripod RRC500/1) - which are nowadays really quite common - to recognise what is rare and unusual about these specific coins. I would say my comments will fall into several categories, rather like peeling an onion layer by layer
OK. no-one is going to comment. So here are my comments:
1. How these coins visibly differ from others of the
type (the real easy question)
They are worn, and in the case of the
Koson, worn and mounted. There are approximately 200 examples of the
Koson stater and over 100 examples of the Cassius Tripod on acsearch/CNG. Every single one of the
Koson examples is unworn. All except one other Cassius Tripod is unworn.
2. What these coins are NOT (relatively easy if one knows many other examples)
Hence these are not modern
hoard coins - every other example listed IS a modern
hoard coin. As such they are extremely
rare3. Provenances The Cassius Tripod has a
provenance of one of the greatest old
collections of coins, the Nicolas
collection: Silbermunzen der Romischen Republik, Leu 17, May 1988. So not only is it not a
hoard coin, it has an old
provenance from an illustrious
collection. This is not so surprising as until the big
hoard of these
types was discovered a few years back, all of the very very few examples made their way into the very best
collections. The
Koson is in a Czech museum. This was the ONLY circulated example I could find on the internet and in the last 10 years I have only seen a single example that was not from one of the recent
hoards. These sort of provenances emphasise the
rarity and great importance of these (worn) examples, relative to the unimportant (unworn,
hoard) examples.
4. Implications for authenticityThere is no question about the authenticity of all the recently discovered Cassius Tripod
denarii but there has sometimes been mumbling about the
Koson stater hoards being 'extended' by modern struck examples, which rumours have increased following the appearance of previously unknown silver examples of the
type. The point about the two worn specimens is that they are immune from such rumours - their condition demonstrates their
antiquity. And no-one is going to take an EF example of either
type and wear them down to this condition: no-one except a specialist would pay a decent
price for them.
5. Historical and monetary significance of these types in 42BC Going back to
numismatic books of the 1500s, both these coin
types were noted as being extremely
rare, and as recently as the 1980s both showed very high prices. This implies the coins were NOT in general circulation in any great number after 42BC when
Octavian and Antony defeated
Brutus and Cassius. So the fact of the great
rarity of these (worn) coins does tell is something about what happened after Phillipi in 42BC in terms of Brutus/Cassius coinage being likely withdrawn and melted, or never issued in great quantities. One does not get this picture from the modern
hoard finds.
6. Implications for long-term ownershipNeedless to say, as it is easy to demonstrate just by looking at 99% of the
Koson staters and 99% of the Cassius Tripod
types that they are all from recent
hoards, there is a real risk that sometime in the next decade someone
comes knocking at your door asking for the return of your examples (presumably after a raid of some nature at one or more big dealers, which reveals who they sold them too).
Had any of us bought the Cassius Tripod provenanced, old
collection example for the modest $1200 it sold for last year, we would be very happy, and could keep it or trade it in perpetuity. That was a true
bargain.
So the moral of this is that sometimes being EF, of itself, detracts from the value and numismatic interest and collectibility of a coin
type. Sometimes the F example is more desirable BOTH for its condition as well as for its
rarity.