How should die letters be listed for for coins of Isle of Man and Gibraltar? [solved]

I see two main ways the die letters are handled:
1) In comments:
https://en.numista.com/catalogue/contributions/modifier.php?id=162882
2) In the Mint Letters column:
2a) With PM:
https://en.numista.com/catalogue/contributions/modifier.php?id=10610
2b) Without mentioning PM:
https://en.numista.com/catalogue/contributions/modifier.php?id=2989

(And I think I've seen other variations but I didn't find any just now.)

What s the best approach to use when modifying listings?

In the text without extra description of such a tiny element and as a mint mark.

'PM' must be included, as that is the mintmark.

Aidan.

Mintmark

• Specify the mint letter(s) in the mintmark field. Other Unicode characters that closely resemble the mintmark may also be used.
• Do not describe mintmarks in words.
• Do not use the mintmark field to record Officinae, die letters, or other types of marks, such as the mintmaster, engraver, or assayer marks.

 

 

So in the year line comments they should be.