The Educational screen (c1922-c1956])

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**• A "li ii .'. i .. • ■<>»a • i* J» I •: !>••< •*•- RADE MARK REG'O. _ PORTABLE 35 mm. SOUND PROJECTOR Has a remarkable tone quality and the volume will be found adequate to meet the most exacting requirements of moder- ate sized auditoriums, schools, colleges, churches, hotels, hos* pitals, steamships and public, private and commercial organizations, etc. The enjoyment and value of motion pictures are greatly increased by the best possible screen results and visual projection has been our first consideration in the design and con- struction of Simplex Portable Sound Projec- tor. Mechanism parts are m ad e f r o m carefully selected materials and all intermittent movement parts are hardened and ground with scientific accuracy to insure a rock steady pic- ture, to increase dependability and reduce maintenance cost. The entire projector mechanism, lamphouse, takeup magazine, motor and sound head are enclosed in a carefully constructed, substan- tially built, but light and compact carrying case. No framing and focusing knobs, switch handles or operating parts project from the case and this makes Simplex Portable Sound Projector easier to carry, especially through narrow passageways. Simplex Portable 35 mm. Sound Projector gives a positive assurance of splendid tone and adequate volume in addition to a professional standard of visual projection, mechanical ef- ficiency, dependability, ease of operation and simplicity. PRICES AND FULL DETAILS WILL BE SENT UPON REQUEST INTERNATIONAL PROJECTOR CORPORATION ^^Gold St., N. Y.