Is there any coin which is rated 1 on the Numista Rarity Index?

Hi everyone, I recently was just browsing the catalog for fun, and then I thought if there were any coins which were rated 1 on the Numista rarity index.

Don't know. Lowest I've seen was 2.

US Zinc cent 1982-2008 rarity 3
UK 1 penny 1998-2008 rarity 3

More coming soon.

Απόσπασμα: "Worldwide collection"​US Zinc cent 1982-2008 rarity 3
​UK 1 penny 1998-2008 rarity 3
​
​More coming soon.

​Don't bother. It's been done before.
Here are two 2's:
https://en.numista.com/catalogue/pieces6.html
https://en.numista.com/catalogue/pieces44.html

0 or 1 is probably impossible since many members have zero coins and new members may not have entered all their coins yet.

Here's a good thread on the subject including a great graph by @Idolenz showing NRI vs. # members.
https://en.numista.com/forum/topic27205.html

I assume why the French 1 franc coin is effected the rarity list than than the US cent because although there is billions more one cents than francs but almost no one logs the cents in apart from BU or error ones (maybe date run) of them. That’s why francs are logged here because this is the coins only purpose as of now because it can’t be spent or exchanged but kept as a collectible.

Makes a lot of sense, as myself like other people no doubt have a pile of French Francs and US nickels in their collections, wanted or not.

The first thing I see is when I open those coin pages, is "In my collection - 21" for the Franc and "In my collection - 74" for the nickel. I don't even actively collect them, but every lot I buy in of mixed world - there is at least one French Franc (And those brass 5,10, 20 centime coins) and a few nickels (Along with dimes, pennies and even quarters now, as lets face it a quarter is not really that much money now)


2 Recent lots of French surplus I have sold lately featuring Un Franc coins and Dix centimes.

Did anyone else see a surprising quantity of those coins?

Other coins that should be 1's

Japan - 1 yen aluminium
Thailand - 1 Baht (Any type from 1998 onwards)
India - 1 rupee
Germany - 5 and 10 Pfennig
Spain - 1 pesetas - Franco and Juan Carlos
UK - 1, 2, 5 pence and 1 Penny 1860 - 1967
Australia - 5 cents
USA - Lincoln Head Penny
Canada - 1 cent 1921 onwards.

You're talking about rarity and French francs, so I get a riddle for U :
How can it be possible that a so rare coin (that worths several thousands of euros ...) as the "1 Franc - Graziani - Aluminium" gets a Numista rarity rate of 29
no question of forgery in this enigma ...

Απόσπασμα: "Frenchlover"​You're talking about rarity and French francs, so I get a riddle for U :
​How can it be possible that a so rare coin (that worths several thousands of euros ...) as the "1 Franc - Graziani - Aluminium" gets a Numista rarity rate of 29
​no question of forgery in this enigma ...

​Too easy ... just a wrongly attributed coin in people's collection (but on a grand scale ... and even not checking the dates?)

Reminds me of all those people owning a 1992 10p from UK, but not noticing theirs is a bit smaller ... and should be inserted here. Even when there are enough comments, people manage to attribute wrongly (and so disrupt the statistics). Maybe a task for the referees of those countries to contact those people to point out the (probable) mistakes.

Απόσπασμα: "BramVB"​​
​Reminds me of all those people owning a 1992 10p from UK, but not noticing theirs is a bit smaller ...
​

​I still don't get this set issue, even though I might have get it two times after swaps
so now i don't want it anymore, i sulk

You're right this is a typical example of confusion of years: 1948 and 1943
There are not actually 350 members of Numista owning this coin from 1943

Απόσπασμα: "Frenchlover"​
​​I still don't get this set issue, even though I might have get it two times after swaps
​so now i don't want it anymore, i sulk
​

Well, the set coin is just the big (older) type with the text "Ten pence". All circulation ones (up to 1981) had "New pence".
Most of those owning the 1992 10p have the shrunk one ... but as with the french franc ... posted it on the wrong page, created totally wrong numbers and prices.

I just added a 50 euro banknote, which is not rare in itself, but the year line was apparently rare. At least for now. 😊

 

rsirian1
0 or 1 is probably impossible since many members have zero coins and new members may not have entered all their coins yet.

 

In addition, I'm sure there are people like me that don't list the more common collectible coins since there are so many valueless ones.

rsirian1
0 or 1 is probably impossible since many members have zero coins and new members may not have entered all their coins yet.

there are some in exonumia

 

userchap

In addition, I'm sure there are people like me that don't list the more common collectible coins since there are so many valueless ones.

Good idea: This keeps the rarity index high!

CREPOSUC

rsirian1
0 or 1 is probably impossible since many members have zero coins and new members may not have entered all their coins yet.

there are some in exonumia

 

I doubt it.  An example with an NRI of 0 or 1?

You may note here and there some eccentricities.

For example, the 20 dollars double eagle (1908-1933) has a rarity index of 25... 

and 5% of collectors who own this coin get the 1933 millesime…

But the NRI applies to the coin type, not year/variety.  There are many coins with year lines that have a frequency of 0%.  That doesn't count.

Frenchlover

You may note here and there some eccentricities.

For example, the 20 dollars double eagle (1908-1933) has a rarity index of 25... 

and 5% of collectors who own this coin get the 1933 millesime…

A large portion of the accounts on Numista are owned  by the Smithsonian😛

The formula used to compute NRI is quite peculiar: the lowest possible number is somewhat larger than 0 but it decreases over time. Possibly the current lowest value is 2. 

The question has been discussed before.

userchap

Frenchlover

You may note here and there some eccentricities.

For example, the 20 dollars double eagle (1908-1933) has a rarity index of 25... 

and 5% of collectors who own this coin get the 1933 millesime…

A large portion of the accounts on Numista are owned  by the Smithsonian😛