Herter's Professional Fly Tying and Tackle Making Manual and Manufacturers' Guide 1941 Book. Material: paper. Size: 6 1/2" W. x 9 1/4" L. Description: gray hard cover; red cover print: "Professional Fly Tying and Tackle Making Manual and Manufacturers Guide, by George Leonard Herter"; contents: fly tying information and fishing entomology with illustrations; 215 pages.