KRUGENER DELTA KLAPP FOLDING TEDDY 9x12

Dr. Rudolf Krügener, Photochemisches Laboratorium und Fabrik photographischer Apparate Frankfurt-Bockenheim, Frankfurt, Germany 1898-1905 

This earlier model of the Delta Klapp Folding Teddy 9x12, with the brilliant viewfinder attached to the top front of the lens board probably dates its manufacture to 1898 or 1899.