Yes you are totally correct the engine line would have a teletype machine and the first operator on that line would hang a teletype sheet on the cradle and set the proper engine in it then all the other workers would build to it. The small parts paint would pick the fenders, hood and the grille for the broncos and send them down stairs to be assemble in a sub assemble area. Coming out of the paint trim's first operators would place them on all four sides for the workers, this was because the body would travel down a line then transverse side ways the travel up next line first line would be face forward then backward on the next line. All these teletypes where thin copy paper of the for no better term copies of the master teletype which was a pasteboard thickness that the inspectors used to check content and place their stamp on. This copy was later separated with other documents and archived to be able to go back on check build history and other data. I do not believe they were intend to go with the unit so much as it was just as easy just to throw the carpet over it, or leave its stuffed in the seat cushion. Note look on you glove box door or on the bottom edge of you dash board on the 1973 builds and you will see paint inspector stamp saying paint, month, year and the inspectors name like Jim Venattor who in later years was my; safety; rep.
