In this way charts, graphs, etc., are shown in full. They are smooth, flat, and always available for quick reference.

3. If necessary any display wing-panels may be removed from the fixture, taken to a

desk where work may be done on the posted material. The entire display is easily returned to its place in the fixture.

S|>rrdway Manufacturing Co . Cicrro. Illinois.

B. Electric Motor Driven Turntables.

1. The turntable on the left operates on an A.C. line and has a five-pound capacity.

The platform measures 11^".

2. The turntable on the right may be obtained for either A.C. or D.C., and has a 500-pound

capacity. No platform is provided.

3. These tables may be used for every type of display.

GRAPHIC PRESENTATION

A. Battery-Driven Turntable.

This turntable when equipped with three batteries will turn fifteen pounds of display material for 700 hours. The table has interchangeable discs, one 5' i" and the other 8'/a ".

Flrisrhrr & Co.. and Aristo lm|>ort Co.. Inc. Nrw York City. Di-itritnitnrs

Diorama Cori>oration of America. Long Island City. New York.

B. Plastic Relief Map in the Exhibit of the Pan American Union at the New York World's Fair. 1939.

1. This map is constructed of transparent plastic, phenolic resin base, and is lighted from

beneath. The map is made in twenty-nine individual panels, modeled from United States topographical maps.

2. The size of the map is 27 feet deep and 20 feet wide. It slopes from a height of 10

feet from the Canadian portion in the rear to 8 inches to South America in the foreground.