Several of the less expensive models give good results with audiences up to two hundred while the 750-watt Leica and Spencer machines are effective for two thousand. The Spencer is equipped to handle

all sizes of slides. ^ . ,

Li ghtness

and convenience is pushing the 2" X 2" slide ahead of the 3i>4"x4"

D. Spencer Auditorium Color Slide Delineascope -- 750 Watts.

Equipped to use any sue slide.

]

4i%

Sprnccr I"" r^ B- ff .1 ■ N V

GRAPHIC PRESENTATION

A. The Selectroslide.

1. Holds 48 Klass-mounted 2" x 2" slides.

2. May be operated by remote control. J. Can be equipped for continuous automatic

operation. Sptndlcr fli Sauppe, Inc., San Francitco. Cal.

Standard American lantern slide and the 3%" x 3%" used in Europe, Lightest of all is the cardboard Ready-Mount shown in 405 B, now included in the development charge for Kodachrome film. Fifty of these in the Kodaslide Changer in 4 0.S A are moved into position by working a small plunger. Glass-covered slides are mounted B. 800 Foot Con+inuous

Projection nnent for Film.

Attach- 1 6 mm.

t .It

I i( II

1 w <,■

I / r 1 1 I <■ c tors . itli. I \<. i!h or witliiiut

With sound runs 22 niin.

without I cpt'.itin^; Sil>nt pKSMitat ii-'n l.')sts

J,i mjn.

Bell & Howrll, ChicaKO. Ill

with tape or metal bindings. Projectors similar to the Selectroslide in A above require a glass-covered slide or one with a metal frame.