1973 Topps Football - Trading Card Database
1973 Topps #4 Scoring Leaders/Chester Marcol/Bobby Howfield
1973 Topps Football - Trading Card Database
1973 Topps #96 John Charles - GOOD - The Dugout Sportscards
Green Bay Packers 1973 Season Sports Trading Cards & Accessories
1973 Topps Green Bay Packers Team Set
1974 Topps Football Trading Card Overview and Checklist
1973 Topps #425 Bobby Howfield RC - VG-EX - Burbank Sportscards