Vintage 10cm German Lobster 2 blade Chateau Laurier Hotel automatic knife

Vintage 10cm German Lobster 2 blade coil spring automatic knife made in Germany before 1970 most likely by BROCHNOHF of SOLINGEN. The knife measures just under 10cm (3 7/8 inches) ea blade open and 2.25 inches closed. Pen/file blade combo as most of these are with both blades being full profile with no markings on the blades. The scales are Pearlex (imitation pearl) with advertising for THE CHATEAU LAURIER HOTEL OTTOWA, ONT CANADA with steel shackle. The knife works great with both blades popping open when the associated tab is pulled down and the blades stay open with some spring tension and lock when pushed closed. VG+ condition.