A vintage American Charvos drawing set, a collection of drafting tools contained in a black case. The case has a deep blue velvet lining and is closed with a snap closure. Inside, the set includes a variety of tools, primarily compasses of different sizes and styles. The compasses have a classic look, with metal construction and nickel plated finishes. Some of them have adjustable legs and a wheel for precise adjustments, while others have fixed legs. Each tool is marked with Charvos USA. The case is marked with Charvos, No 814, Made in USA. Charvos was a well known manufacturer of drafting tools in the early to mid 20th century. The brand gained popularity for producing high quality tools that were used by architects, engineers, and designers. Vintage American Drawing Sets And Tools, American Industries Collectibles.