Ensign Optiscope No 6 lantern slide projector. For 3 1/4 x 3 1/4 inch slides. Aldis Uno projection lens F:10 inch; all metal; bellows lens extensions, with two wooden slide carriers (stamped RRD). This is a projector for 3 1/4 inch square slides. It has an Aldis Uno 10" projection lens mounted in a panel on two rods and with bellows that can be extended. The lamphouse has an ES bulb holder, secured by a wing screw underneath its base. The projector comes with two wooden slide carriers. The projector can be pivited on the base and secured by means of the chrome lever. Power is controlled with an on/off switch on the base.

Ensign Optiscope Number 6 slide projector, made in England by Houghtons Limited, c. 1905.

This projector uses 3 1/4" square slides. It has an Aldis Uno 10" projection lens mounted in a panel on two rods and extendable bellows. The projector can be pivoted on the base and secured by means of the chrome lever.