Yesterday I was given a fairly hefty documentation set: Installation and Operation Model 1016 Drum Memory with Digital Interface Vermont Reserch Corporation North Springfield, Vermont Most of the documents are dated 1969. It contains a lot of technical information, theory of operation all all the boards, full schematics, copies of the original blueprint drawings etc. Anyone need/looking-for this? Regards, Dave PS: Anyone know what type of system this was used with? -- dave06a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html