super rare 1920's - 1930's Italian 13.5" Frosolone style automatic switchblade knife made in maniago Italy by Renzo Pascotto for AGA Campolin of Maniago Italy , 1 of only 3 made in real genuine Mother of Pearl handles with no cracks or chips ,thick D-stamped brass liners and solid brass pins, solid Nickel/silver bolsters button and safety, polished stainless steel blade, 2 piece style slip in type spring/backspring , backspring/blade measures 5mm thick and is stamped (AGA CAMPOLIN) long ways on blade and ( Made in Italy) stamp on tang of blade. straight and tight all around with good fast kick .   even though this has a AGA campolin stamp it was made by Renzo Pascotto for AGA campolin around 2010.   only 3 were made with Genuine Mother of pearl and this is 1 of them ,this knife is from the very first run of 13.5" Frosolone made by Renzo Pascotto,  no other stamps or marks anywhere on knife.  Comes with signed certificate of authenticity as shown. as stated in certificate 1 of only 3 made in real Pearl shell, knife is mint/new condition.   serious offers only .  this knife is made like automatic Italian switchblade knives from Frosolone Italy sometime in  early 1920's to mid 1930's.