Glove box was a different key on early ad trucks just like the cars where in 1950 the door and ignition are different than glove box on purpose
Then later by 53 for sure to reduce cost all keys match
I’m not sure when the change was made
That is why there is a octagonal head and a round head key
The oct. head shape is the ignition and door and the round head key is the glove box
-s
