TOS SN40A,B SN45A,B SN50A,B Lathe Spare Parts Catalog Manual 1973
SN40A SN45A SN50A SN40B SN45B SN50B. Instead having exploded views of the lathe, they lay out all the parts in flow chart way. They go through the whole lathe this way. This version also includes naming and part counts.
