ty baker, BO, BV, Q ….basically all patriots
Red Pallets and Blue Pallets: Declaring Pallet Ownership
Its a 1900+ invented thingy to keeps thins clear, telling from who is what in imports/exports.
It also has been proofs in liability thingies, knowing from what side it came.
https://www.thebalancesmb.com/pallet-markings-what-do-they-mean-2878162