Isle of Man 1982 50P TT [解決]

Missing on N#44641 unable to add directly for all compositions of this coin

There are 4 compositions of this coin in the Numista catalog.  Which one is missing?

None just these are missing 

All existing variants are already in Numista.

The one from your picture is listed as “Proof” (no die mark) in contrary to the AA die Mark released to circulation.

And yes, I know that Diamond Finish is not exactly the Proof.

Silver,  Gold and Platinum editions are listed on separate pages.

I'm trying to avoid just doing this adding diamond Finish in proof when it is not proof 🤷‍♂️

If there is a Proof version and Diamond finish (whatever that is) there there should be two lines, or not?@MMowiec 

All exisiting versions are in Numista, no need to add the new lines… this is all about the naming of finish.

For base metal coin, there were only two versions: circulation and Diamond Finish which looks like Proof (mirror) however technically is not the same as real Proof finish according the Pobjoy standards (Proof finish = four times struck on polished dies; Diamond Finish - two times struck, also by polished dies; normal BU finish is also 1-2 times struck but with no polished dies).

Here is the example of the Diamond Finish version - this really looks like Proof coin but in fact is below the Pobjoy standards of proof coins (probably it's above the proof standards for some other mints): https://www.ebay.co.uk/itm/364589077831

Some catalogues list these Diamond versions as Proof (Schon) and some other no... Also on Numista, there are users who “fights” with the naming “Diamond Finish” as “Proof”, the others say it should be Proof or Proof-like because this looks like Proof and some catalogues name it this way and that this is wrong to use the finish naming individual for each mint because this is confusing for users who don't know all the names used by different mints… You can easily find the long topics about Diamond Finish on this forum.

For Pobjoy Mint, real Proof versions are usually reserved only for precious metals. The base metal “Proof” are usually in reality “Diamond Finish”. In Numista, I see different versions were used, sometimes it's named “Diamond Finish”, more frequently “Proof" or "Proof-like". What I started to do with Gibraltar coins from Christams series is adding “Diamond Finish” to the existing “Proof” description. See here: N#19482

@Jarcek, maybe you can advice what should be used and you can add this to the guidelines.

Wild thought - would it be wrong to make Diamond finish searchable by Proof and vice-versa?

As to what to use, I think we could keep this easy explanation in the comment section: (Proof finish = four times struck on polished dies; Diamond Finish - two times struck, also by polished dies; normal BU finish is also 1-2 times struck but with no polished dies).

And it also means I can close this request, as there is nothing to be changed by admin.

So you recommend to use “Diamond Finish” in year line comment and to put the definition of Diamond Finish in general comment section, is it?

would it be wrong to make Diamond finish searchable by Proof and vice-versa? → for me it's OK.

I would use most commonly used term in the yearline.

Alternative is also to put it to Additional information about composition - N#183677 But I guess it would be better in additional details about technique.

Can't put it as additional information in composition. There are two year lines and one isn't “Diamond Finish.”  So which year line becomes the "Diamond Finish" and which no finish comment?  Does the Diamond Finish have AA die letters?  Is the mintage on the wrong line?

True…

Found this on ebay:

BB?

Usually AA, AB, AC are standard circulation coins. 

BB, BA, BC or recently DA, DB, DC are the Diamond Finish that looks almost like Proof coins. But this is not always a rule. Sometimes circulation coins are also BA.

“Full” Proof are silver, Gold or Platinum, frequently with only one die letter: D (silver), G (Gold), B (Platinum) or sometimes other letters.

For TT coin 1982, yes, this refers to BB. It looks that mintage was wrongly added to circulation AA coin instead of Diamond Finish BB. Just corrected it. I have this coin, will find it and add the pictures of example in coming days.

I see BB die letters