This lot is closed for bidding. Bidding ended on 4/24/2016
1977-78 Topps Basketball Progressive Proof Set of 10 for card #102 Howard Porter of the Detroit Pistons. Proof set follows the production of the card through the printing process with the various colors added to the image. Stages are: Yellow, Red, Black, Blue, Blue/Red, Yellow/Blue, Yellow/Red, Red/Black, Yellow/Blue/Red, and Yellow/Blue/Red/Black. All have blank backs and appear to be in NM-MT to MINT or better condition. All are in Acu-Card holders.