German railway wagon classes - Wikipedia
UIC classification of goods wagons - Wikipedia
IIA 90 m³ 4-axle hopper wagon for UK – Greenbrier Europe
File:Audi A6 wagon -- 01-01-2012.jpg - Wikimedia Commons, mr x
Chaldron wagon, Stockton & Darlington Railway
model br hopper wagon Science Museum Group Collection
List of vehicles at the Museum of Transport, Greater Manchester
Category:Station wagons - Wikimedia Commons
Category:Horse-drawn wagons - Wikimedia Commons
File:Jaguar X-Type Wagon 2.0D.jpg - Wikimedia Commons