Congratulations on your acquisition. By any chance does one or more of the binders cover the option codes (SA codes) used by Mercedes-Benz to describe their various factory options. Through a Service Information bulletin dated February, 1958, M-B announced its intention to issue a series of advisories entitled, "Special Designs and Extras" which would explain the many options indexed by option number. I am attempting to compile a list of these codes as they relate to the 300 SL and would appreciate any assistance your books might provide. Ed Boyd ejb@elilaw.net