The Catalogue Nº for both is R344, the Running Nº is TR9372 and they date from the 1960s. Both pads have been used but I am sure they could be washed, if desired. The roof of the green car has a piece of the edge missing on one side.
Triang Hornby R344 Track Cleaning Car Green
Tri-Ang R344 Track Cleaning Car in very good condition '00' gauge in box
TRI-ANG - R344 TRACK CLEANING CAR, R211 SHELL OIL TANK CAR, R124 W.R. BRAKE VAN
Hornby R344 Track Cleaning Car (Red) - 00 Gauge - Boxed