There is a loop over the last 'o', I think It may say 'standard'...
(which would be odd if it's german, unless it's export...)
See FitZall/Standard wrench & Tool co, Alloy Artifacts:http://home.comcast.net/~alloy-artifacts/Photos/tools/standard_wrench_adj_wedge_fitzall_pat_f_cropped_inset2.jpg