Matchbox Superfast Bowater's Printers Proof Empty "New" Type K Box For 62d Chevrolet Corvette - 1978 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: 18/12/78"; black Bowater internal factory works order sign off stamp "Customer: Lesney, Works Order No. 549841 dated: 13/08/79", which also states "copy correct apart from: background colour". 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 - Excellent Plus having been folded in the past. Unique historical item.