Artefact Description: small clear glass light bulb contained within metal trapezoidal structure with yellow plastic rectangular panels at the front & back, the front panel is edged with fabric material at top & bottom & is a sliding panel. Steel chains attached to front covers
Initial identification: lighting material
Material: metal, steel, plastic, fabric, glass
Inscriptions, makers marks etc: black painted makers mark on back= Kodak Safelight Filter, Wratten Series OB; red & yellow label at top has writing= ILFORD LIMITED, ILFORD, LONDON
