Optician’s auxiliary lens kit by the American Optical Co., c1920s. In good condition with slight wear due to age and handling. Case has a few scuffs and nicks, but is solid and intact. There is one lens missing, but the rest are accounted for. Original pamphlet and test cards not included. Case, when closed, measures approximately 10“ x 6“ x 2.5“. Sold as is. Please ask questions if you have them.