U.S. National Guts, 1977—Wham-O 14 Mold, 6th Style—Fire Orange—WhiteMaker: Wham-O Model: Professional Frisbee Style: 6th Mold: 14 Size: 9.375 inches Disc Color: Fire Orange Lettering/Hot Stamp: Professional Frisbee®, Laurel Leaf™; 2 bands—White Label/Sticker: Blue on White "U.S. National Guts Frisbee Tournament, Cliffs Ridge Ski Area & Frisbee Sanctuary", Guts Player throwing a thumber. Date Introduced: August 13-14, 1977 Number Produced: Period of Manufacture: 1977 Special Notes: Contributor(s): Joe Essman