Matchbox Superfast Bowater's Printers Proof Empty "New" Type L Box For 4d '57 Chevy - 1979 Copyright proof box with green cross circles to inner end flaps; red Bowater internal factory proof stamp "Approved For Printing & Approved for Creasing & Make-up" dated: 31/05/79"; black Bowater internal factory works order sign off stamp "Customer: Lesney, Works Order No. COL 55244 dated: 19/06/79. Box does not have the print registry number to the end flap tab alongside the Bowater Trade Mark, these were only added once the full printers sheet was completed, being dependent on where the box was positioned on that main sheet - overall Excellent, having been made up and then subsequently taken apart along the seam once the design had been approved by Lesney Products. Unique historical item.