439 - Varied lot of vintage crystal radio receivers, including boxed examples, loose receivers and original packaging. The collection includes three red Omega 'Detektor-Anlage' boxes, several compact black receivers with circular tuning controls, a yellow translucent receiver, a red textured cabinet-style receiver, a small blue radio with a circular tuning dial, a red miniature personal radio and additional compact receiving sets. Also included are a Bridisco 'New Luxury Crystal Radio Receiver' with its original cardboard box, a blue presentation box marked 'Crystal Radio', and several other receivers accompanied by period cardboard packaging. An interesting assortment illustrating the development of simple radio reception, from detector and crystal sets to miniature personal receivers. Particularly appealing to collectors of early radio technology and vintage electronic equipment. The items and packaging show varying degrees of age-related wear, discolouration, surface marks and storage damage. The working condition of the novelty radios has not been verified. Please use the provided photographs to assess their apparent working and visual condition. The stated dimensions are approximate and refer to the items placed as closely together as possible as a group, and the weight refers to the group as a whole. Dimensions (H x W x D): 45 x 35 x 19 cm. Weight: 4 kg. Location: Dutch Auction Company, Tilburg, The Netherlands.