The tag is the original, I am the second owner of the truck, The first owner was an auto electric shop in Moose Jaw, and they couldn't have been the least bit interested in something so unimportant at that time (1969).
I can't explain why that tag would be on the cab, it's just there.
Bob


55 Cameo 396 TH 400 with overdrive
65 Caliente conv
67 BB Caliente conv
67 Mercury 1 Ton
76 GMC 3/4 ton 454ci
84 Buick Turbo Regal