Manual envlope

Found this on ebay. This appears to be the original envelope the parts and service manual (TM10) would come in.
Text at the bottom appears to be the standard:
"General Motors Truck & Coach"
"Division of"
Yellow Truck & Coach Manufacturing Company"
"Pontiac, Michigan"
Text at the bottom appears to be the standard:
"General Motors Truck & Coach"
"Division of"
Yellow Truck & Coach Manufacturing Company"
"Pontiac, Michigan"