Maybe one of these similar products would be of interest:-
Zimo MX616N Micro DCC 6 Pin Plug-In Decoder Smallest Ever Full Functionality
Train-O-Matic Lokommander 2 Micro (Smallest) 6pin Decoder
Original GREATSTONE World's Smallest Public Railway 1920's RAILROAD TRAIN Poster
Scenic Railway Journeys of the World, New Worlds, Old Worlds, VHS.
BR London Midland Employee Leaflet The Public & You Public Relations 1950/60s