Egon Riss' 1939 innovative design for Isokon was created with shelves on both sides sized to perfectly fit Penguin books as well as a space in the center to hold magazines. Made of birch plywood, wartime shortages brought a quick end to production with only 100 examples having been produced and sold making them incredibly rare today. Isokon and was revived in 1963 and the Penguin Donkey redesigned by Ernest Race. In 1982 Windmill Furniture ( now named Isokon Plus) assumed the license to Isokon pieces and reissued the original design. This example is from that 1982 re-edition. It is in very good condition with some pleasing patina from age and use.
Penguin Donkey Bookcase by Egon Riss