Isle of Man 10 Pence 1992 KM# 337 1992 AA (no PM) [Resolvido]

I have a 1992 10 Pence piece, KM# 337, die letters AA, with no PM.

(I know where the PM should be. I have other dates/die letter combinations with a PM.)

Does anyone have a 1992 KM# 337 AA with PM?

I'm trying to figure out if a new line should be added or the PM should be removed from the existing line.

https://en.numista.com/catalogue/pieces9618.html

Schön# 858.1 is 1992 PM AA with no PM, Schön# 858.2 is the version with PM. But Schön doesn't say whether 1992 PM AA exists or not. It only gives the set of years and the set of die letters for Schön# 858.2.