Walter tyler helioscopic
A tinplate and brass magic lantern by Walter Clement Tyler of Waterloo Road, London. This is Tyler's 'Helioscopic' lantern, to a design that was patented in 1888. It if fitted with a 7" objective lens, internal condensing lens, burner and chimney. Embossed brass maker's plate to the rear. 22" (56cm) long and 14" (36cm) high. SOLD.