Help ID an "Airborne" Spoon

[JamesLincs]

I have a 12cm long souvenir spoon with an "Airborne" emblem on it. Unfortunately I am very unfamiliar with non-British hallmarks and I can only seem to identify this item as potentially being German because of the "90" stamped on it. The hallmark seems to read as: S (or g) then "AM" and then "90". If anyone can tell me the maker, year and confirm it's place of manufacture, I'd be most grateful.

[oel]

“Pegasus is the defining symbol of British Airborne Forces 

The spoon is silver plated. AH in a rectangle with cut corners, I believe is a to me unknown Dutch silver plate mark. The 90 to indicate 90 gram of silver is used to plate 12 of the same spoons
https://www.925-1000.com/a_platenumbers.html
The letter S could be a factory code letter and of no great importance, made in the 1950ties.

Peter.

[JamesLincs]

Thank you!!