This is a popular post-war variation,
1967 Topps #252 Bob Bolin 'White Streak Between Name' (bad grammar aside), that also belongs in the 'I have yet to see another' category. Whereas the white streak is 'supposed' to be more or less of a thick, straight, white line connecting the two names, this one has the same extra white ink responsible for said streak smeared all around the same area. Pretty cool...
1967topps252whitestreakFRONTcorrectPSA8.jpg