Lot 50478 – France – Bordeaux Issue 2c in vertical pair, glass support cliché with reversed image in vermilion, with dating “2/48” and technical specifications along the right side that details light exposure, temperature and

France – Bordeaux Issue 2c in vertical pair, glass support cliché with reversed image in vermilion, with dating “2/48” and technical specifications along the right side that details light exposure, temperature and chemical element used. There is a faint impression of another vertical pair being printed to the left originally. An exceptionally rare and brightly coloured cliché that is an eloquent testimony to the specifics of Sperati manufacture.