These .73mm steel backed solar plates were manufactured under an exclusive formulation from Kodak. Known as "Solar Plate", "Jet Plate", "Miraclon Plate" - they are now discontinued and the factory shuttered. Although in plenty supply until just recently, several large Tampography printers (the industry that they were originally manufactured for) have wiped out all remaining inventories. Cone Editions Press (our sister company) has a good supply of these plates remaining and can produce ready to print photogravure plates with their proprietary process, calibrated to your display screen, from your uploaded images. As a courtesy, we are taking orders for ready to print plates here at InkjetMall.