This is the list of recommended spares inventory for the PDP-11/20 in June 1970. The material was provided by Ed Doran.
Note that the images referenced below are scans of the actual pages, and so tend to be large. To make quick previewing a little easier, each page is shown here as a colour-reduced thumbnail image (~1KB), with links to a colour-reduced 70% size image (~30KB) and a full-colour, full-size page image (~1MB).
For those reading this as a simple text file, all of the images are available at ftp.village.org in the directory: