100% original, authentic and game used....... Gorgeous, vintage durene jersey worn by former Detroit Lions Offensive Guard Bob Kowalkowski..... Original Griswold Sand-Knit tagging along with size 48 flag tag on lower front tail...... Team repairs also are evident......The item "1960s Bob Kowalkowski Detroit Lions Game Used Durene Football Jersey withSocks #66" is in sale since Monday, November 18, 2019. This item is in the category "Sports Mem, Cards & Fan Shop\Game Used Memorabilia\Football-NFL\Jerseys". The seller is "b-e-collectibles" and is located in Thornwood, New York. This item can be shipped worldwide.