On the subject of wagons and coaches there are two interesting vehicles in photographs in the book 'R-O-D on the Western Front 1915-1919' by William Aves. The first is a 6-wheel passenger brake van that although belonging to the French Nord company was very British in appearance and size but with a pair of strange ventilators on the roof rather like large pent roof dog kennels with louvred sides. The other is even more interesting as it shows the German rail gun captured by the Australians. Attached to the rear of the gun was a modified open goods wagon. The wagon was fitted with a pent roof raised above the sides and appears to be used as a magazine wagon. It started out as a high sided wagon fitted with central cupboard doors about 4-5 feet wide, is about 22-24 feet long with a wheelbase of about 15-16 feet. The pent roof is raised above the sides (5-6 feet) by about a foot or so and completely covered in except for 4 square windows/loopholes cut in the sides.