GERMANY DRGM Lobster 2 blade tab release automatic knife

Vintage GERMANY DRGM Lobster 2 blade tab release automatic knife made in Germany  most likely in the 1950s or 60s. The knife measures just under 10cm (3 7/8 inches) open with brass liners and release tabs and steel shackle for keychain. One pen blade and one file blade (for fingernails). Both blades are full and the pen blade is marked  GERMANY and the file blade is stamped D.R.G.M. The scales look like marine pearl (fake pearl) celluloid with advertising for the CANADIAN NATIONAL EXHIBITION TORONTO CANADA. The knife works perfectly with each blade popping open fully when the corresponding tab is moved at the bottom (back) of the knife. EX condition.