細節
Scientific Toy 'Gyro' Mono-Rail Car
cream and red lithographed tinplate with rails and rail-chairs --5in (13cm) British, circa 1912 (F-G)
cream and red lithographed tinplate with rails and rail-chairs --5in (13cm) British, circa 1912 (F-G)
出版
British Tin Toys. Marguerite Fawdry. New Cavendish. 1990 page 222