Mike,
Actually I do and have done plenty of research on this kind of stuff. Here is a link to a whole discussion on DFS large and small font wrenches.
Whats the story with Large and Small Font DFS wrenches? [Archive] - Early 911S Registry
Also, here are some pictures of a tool kit that was still in the "Genuine Porsche Parts plastic bag, from 1979 with a combination of DFS small font and Selected Special Steel wrenches.
