Triumph TR4 -Posters For Sale. A choice of 3 Posters - Would look great on the wall of your garage or man-cave. Size A2 (420 x 594mm), printed onto good quality poster paper. 1. 50th Anniversary History of the TR4 2. TR4 Cutaway Diagram 3. TR4 & TR4A Lubrication Chart Just £10 each plus postage. Other Posters available. Please ask..