Protective glass sample made by Pilkington P.E. Ltd, Rhyl c.1990. protective glass samples circa 1990
Protective glass sample made by Pilkington P.E. Ltd, Rhyl c.1990. protective glass samples circa 1990
Variable wavelength hologram by P. E. Pilkington Ltd., St. Asaph, Clwyd, Wales, 1985. Originally shown in metal frame/stand. Variable Wavelength Hologram 1985