Very beautiful stamps were sometimes issued in very small quantities to commemorate the visit of a high person, a good part of which was given to this philatelist host.
It is assumed that in numismatics no coin or note was issued in a single copy. Hence the curiosity to know the coin and the note, present with link in the catalog, having the minimum issue and the one having the most.
Excluding publicity “coins” & pattern coins, I think the lowest might well be 6 (or 7 depending on source) for the 1933 penny here in the UK.
It was only made to circulation standards, and would have been readily accepted as a 1p coin as it was functionally identical.
Was simply none were needed for circulation but tradition demanded new public buildings had a new penny laid in them so they minted a tiny amount of them.
One of the great rarities of the British series is the 1933 penny. None were issued for general circulation, but seven were made: three proofs to place in foundation stones laid by the King and four currency issues. At least one of the proofs has been stolen (from the Church of St. Cross, Middleton, in 1970), but the other six are all accounted for. Just three (including one proof) are in private hands. […]
In addition there are four pattern pennies known to exist which have a larger portrait of George V and a slightly different version of Britannia on the reverse.
As you say, if any had ended up in circulation, the “currency issues”, as he calls them, would have been identical to the other circulating pennies.
Only 15 examples are known and listed, all UNC. The rest of the already small mintage (around 4,500) was recast.
But the Numista rarity index of 25 is not that bad 😊 Specialists know that a “3” can look like an “8” but for weight… Roberval scales do not seem very precise 🤨
And then, there are certain circulating commemorative coins with an extremely low mintage like this one with only 3000 coins on 2017:
Also, many type/KM-number collectors tend to checkmark the first line, whatever year their own coin actually is. So the data is skewed. Is there anyone who could quantify this distortion?
Ideally, the first line of any type with more than 1 year of issue should be something like “Any year”, just for type collectors.
Also, many type/KM-number collectors tend to checkmark the first line, whatever year their own coin actually is. So the data is skewed. Is there anyone who could quantify this distortion?
Ideally, the first line of any type with more than 1 year of issue should be something like “Any year”, just for type collectors.
Those who collect by type check the first box, the year is indifferent to them They will have difficulty exchanging with those who are looking for years
the year 1954 has a mintage of 1 and a frequency of 0.4%…?!
The coin page has an NRI of 3. I used the NRI vs. members curve of Xavier, extrapolated out to a NRI of 3 and got 3,000 members. With a frequency of 0.4% that gives 12. Of course the extrapolation is very rough and the actual number could be somewhat different. The referee should know the exact number.
