This is my file collection of the 400 - 8,000 series early Gravely riding tractors original hardcopy parts lists, service manuals, operator manuals and an advertising postcard.  I never collected the riders, but I did collect the literature and they are excellent tractors.  If you collect riders this collection might fill in some gaps in your collection or help you know what parts you need.  The operator manuals and postcard are especially interesting.

10 different hard copy items and some stapled set up and operating materials. 

2 different 408 operator manual covers with same interior information.

1 clean color postcard

Clean for their age except some parts lists show they were used by someone with hands that were a little oily.