G'day, I've got a book "Sistema Malykh Elektronnykh Vychislitel'nykh Mashin (SM EVM) -- Katalog razrabotannykh i ispytannykh tekhnicheskikh i programmnykh sredstv", 1979. ("Small Computers Series: Catalog of designed and tested hardware and software") It covers machines of first "pass" -- SM-1, SM-2 (HP 2100s), SM-3 and SM-4 (Unibus PDP-11s). I've attached its table of contents with my notes. The file is in koi8-r charset; it is best viewed in Lynx 2.8.1, even if you don't have Cyrillic fonts. -- Sergey Svishchev -- svs{at}ropnet{dot}ru