Carey,
I do not have any (reprint or original) old Märklin catalogues. Here a picture from "The Golden Years of Tin Toy Trains 1850-1909 (Paul Klein Schiphorst)" showing two of the first Märklin 0 gauge locomotives. This book is advisable when you are interested in older toy trains and is one of the few also mentioning (and showing) FV and other older French makers.
Regards
Fred