The 110 was produced contemporaneously with the 150, up to 1968, and my 110 was made in 1966. I don't think that even 180 were completed, some of the receivers stamped "110" being used to build up 150. I think that rarity of the 110 places it somewhere between something like a Falke 90 (estimated production around 200?) and something REALLY rare like Anschutz LG54.
I think the reason a example of a FWB 200 has never been found was that the 110 really was a commercial failure?
DualMagMike shows several airguns in "one of 25" catagory, and Falke 90 are not as uncommon as 110, and certainly not like LG54?
FWIW, it's a fun lightweight gun to shoot, sorta like an unsleeved HW55S.
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