Matchbox Superfast Bowater's Printers Proof Empty "New" Type L Box For 59d Porsche 928 - 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. is missing, 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 - Excellent but a little creased at 1 end, having been partially folded in the past & also has 2 staple puncture holes to 1 end flap. Unique historical item.