E. F. Johnson Company Catalog. The Hamalog, T-1. Material: paper, plastic. Size: 5 1/2" x 8 1/2". Description: white paper; black print: "The Hamalog, Catalog T-3, Radio Supplies for Transmitting and Receiving, E.F. Johnson Company, Waseca, Minn."; ALD logo lower right; 40 pages; black plastic spiral binding.