- 1Polish State Railways contractors committee drawings (GEC/2/2/2/22)
1960-1965, file - 2Layouts of electrical equipment and pantograph general arrangements (GEC/2/2/2/80)
1928-1949, file - 3Wiring diagrams and mechanical details (GEC/2/2/3/5)
1962-1979, file - 4Equipment layout and wiring diagrams (GEC/2/2/3/6)
1960-1986, file - 5Master controller and wiring diagrams (GEC/2/2/3/7)
1961-1989, file - 6General arrangements and outlines of diesel electric locomotives for UK & overseas railways (GEC/2/2/2/116)
1959-1973, file - 7Polish State Railways mechanical parts (GEC/2/2/2/133)
1955-1962, file - 8Polish State Railways mechanical details and assembly of sealing plates (GEC/2/2/2/192)
1960-1962, file - 9Polish State Railways roof arrangements, side panels, cab frames, panelling and TM ducting (GEC/2/2/2/195)
1961-1963, file - 10Polish State Railways conduit layouts, wiring diagrams and arrangements of battery boxes (GEC/2/2/2/196)
1961-1962, file - 11Polish State Railways piping, plates and conduit layouts (GEC/2/2/2/230)
1960-1961, file - 12General outlines of diesel electric locomotives (GEC/2/2/2/241)
1958-1962, file - 13Polish State Railways piping and structure arrangements (GEC/2/2/2/263)
1961, file - 14Diagram of connections for coaches and trailers (GEC/2/2/2/272)
1949-1952, file - 15Polish State Railways contract tracings (GEC/2/2/2/284)
1960-1964, file
