Michigan Heath Co. 1953 Various pages Optical Energy (Page-1-1) Optical Fibers (Page-2-1) Fiber Optic Light Sources (Page-3-1) Fiber Optic Receivers (Page-4-1) Fiber Optic Systems (Page-5-1) Heathkit Educational systems Almirah No.132 and Shelf No.1 Fiber optics 621.3827 20170207154200.0