'64 Topps experts... #287 card Conigliaro

Just wondering about the blue mark that tends to be in Spanswick's arm pit. Looks like a blue marker was used on the card but apprently it's common for it to be on the card. I just bought one off eBay and thought it had been marked on but I checked eBay and it seems it's a common thing.
0
Comments
by hammerin hank who seems to be the resident expert for that set.
Maybe he can tell you more.
Steve