Mackenzie-Wishart daylight slide for 4 x 5 inch plates in one envelope. Mackenzie and Co. Mackenzie-Wishart daylight slide
Cut film adaptor 3 1/4 x 5 1/2 inches. Film in envelopes with flexible covers opened automatically as darkslide withdrawn. With three cutfilm envelopes. Mackenzie and Co. Mackenzie-Wishart Daylight Slide
