Lockback folding (pocket) knife Mercator 1935-40

WW2 Mercator Solingen Germany Lockback Folding Knife . There is a lot of information on internet for Mercator , and this Knife is popular for more than a 100 years .The knife is made by Solingen the German Quality Edged Weapons maker . folded 4 4/10 " ( 11 cm) opened 7 3/4 " ( 20 cm.)