Standard Company Name: L. Wright Machine Works Company Name: L. Wright Machine Works Title: L. Wright's patent variable speed attachment for sewing machines. Imprint: [1872?] Pages: 1 Notes: Format: Fliers Descriptive Notes: This attachment changes the speed of machines instantly from the slowest to the fastest rate without any stopping of belts or face plates. Smithsonian Location: NMAH. Archives Center. Warshaw. Box: 5 ; Folder 4 (about locations) Display Scanned Item: No images available (about image availability) Record Number: 4903