Crook Paper Box Co North Kansas City Box Maker's Certificate Printing Plates x3

Every corrugated shipping box once carried a small round stamp telling the railroads and truckers that it was built to freight standards, the Box Maker's Certificate. These are three of the printing plates used for that stamp, each carrying the name of Crook Paper Box Company of North Kansas City, Missouri. They suit collectors of industrial relics, printing and packaging items, and Kansas City history, and they look right on a workshop wall or a shelf.

Details

• Each plate has raised, mirror-image lettering reading Crook Paper Box Company, North Kansas City, MO, and Certificate of Box Maker, citing the Consolidated Freight Classification.
• Each also has lines for bursting test, size limit and gross weight, with ratings that include 275 and 175 lbs per sq inch.
• Two of the plates are flat with four screw holes.
• The third is a mounted plate screwed to a gray metal-faced block.
• Handwritten numbers appear on the backs.

Condition: Heavy grime and rust on all three plates, as you would expect from shop-used industrial pieces. The mounted plate has chipped, irregular corners and edges and rusty screws, and one unmounted plate has torn paper stuck to its back. Sold as found and uncleaned; please see the photos.

The photos are part of the description, and everything is packed with care.