Do You Know that a Film Attachment Will Double the Usefulness of Your Slide Projection Balopticon
will Triple Its Value? S HE day of the itinerant lecturer with sputtering lantern and cumbersome glass slides has passed. Today every church and every organization has a good Balopticon. These lanterns— with two inexpensive attachments— can be used for projection with “Strip Film” and in undarkened rooms.
FILM PROJECTION is the most recent development in the visual field. Standard width film is used in place of glass slides, thus eliminating broken slides, high rental and purchase costs. Many religious and commercial organizations are now able to supply a wide variety of subjects and complete lectures on “Strip Film.” DAYLIGHT PROJECTION, i. e. the projection of slides, opaque objects and films in undarkened rooms,— has unlimited possibil ities for church work. There is no need to completely darken the classroom or auditorium. Our new booklet on Daylight Projec tion gives full information. Send for it today. May We Send You These Two Folders on DAYLIGHT and on FILM PROJECTION BAUSCH & LOMB OPTICAL CO., ROCHESTER, N. Y., U.S.A.
USE THE COUPON
Bausch & Lomb Optical Co., 728 St. Paul St., Rochester, N. Y.
Do you know that the Bausch &Lomb Optical Co., —makers of all types of Balopticons and projec tion apparatusfe-manufacture-a greater variety of optical lenses and products than any other con cern in the world? The Trade Mark guarantees the highest possible quality. Eyeglass Lenses Binoculars Automobile Lenses Telescopes Camera Lenses Field Glasses Motion Picture Lenses Reading Glasses ■Microscopes Magnifiers Special Optical Systems for all Purposes Our Experience Guarantees Your Satisfaction
Gentlemen: Kindly send me the booklets checked. I am particularly interested in these new forms of projection for the church work— ; for educational work— ; for home -entertain ment—. Projection □ ] Daylight Projection I Name.................................................... .................... .....: | Street.................................................-....¿■¿’LL'L IL L _____________________ ;___________
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