Thread: 1961 Topps Proof
View Single Post
  #2  
Old 06-07-2020, 10:06 AM
ALR-bishop ALR-bishop is offline
Al Richter
Member
 
Join Date: Jun 2009
Location: San Antonio
Posts: 9,392
Default
Unless a proof card comes from Topps vault or differs in some manner from the actually issued card I think it is virtually impossible to distinguish a proof card from just a blank back card, of which there are many
Reply With Quote