Pin - please help

[Albert]

Dear All,

What is this pin? Any info about rarity and value is highly appreciated.

Thanks and best regards,

Albert

[Albert]

And the back:

[John Bart]

Hi Albert,
Never have seen one in badge form. I would think pretty uncommon.
I have its twin in plaque form you might be interested in seeing.
Perhaps these may have been issued in sets? Just a guess.
Very nice.

[John Bart]

Reverse.......

[Albert]

Hi John,

Thanks a lot! That is a neat plaque you got there. Chances are those came in pairs. This here will give you an exact size idea

Best regards,

Albert