- 1Argus Computing Equipment Catalogue Issue 26 (YA1996.10/3/2/2301)
1986, item - 2Argus Computer Equipment (YA1996.10/3/2/2302)
1972, item - 3IT Manager DRS & 3270 Super-emulators (YA1996.10/3/2/2306)
c1980, item - 4Ferranti Telex PC (YA1996.10/3/2/2307)
c1980, item - 5Telex, Teletex and Message Switching (YA1996.10/3/2/2308)
c1980, item