The product is a vintage 1971 Märklin HO Scale Model Trains Catalogue written in German. It is a price guide that caters to collectors and enthusiasts of model railways and trains. Published by Märklin, a well-known brand in the industry, this catalogue provides valuable information on the pricing of HO scale model trains from that era. Written in German, it offers a unique insight into the world of model trains during the early 1970s. Note see all pics as slight wear around the edges and has been folded up in middle leaving a crease for many years.