Here's a picture of another variation from my collection. It has a screwdriver on the end of one handle and a wrench on the other. 8" long it is marked "D. R. G. M." "15055" "Germany" with what looks like "H & M" in a diamond. D. R. G. M. is a German abbreviation that translates to German government registered design.
(http://i222.photobucket.com/albums/dd3/buswrench/message-board/offset-german-pliers.jpg)