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12-inch black slate terrestrial globe
Date: circa 1970
Inventory Number: 2016-1-0029
Classification: Globe
Subject:
Maker: George F. Cram Company, Inc. (founded 1867)
Owner: I. Bernard Cohen (1914 - 2003)
Cultural Region:
Place of Origin:
Dimensions:
35.6 × 41.9 × 41.9 cm (14 × 16 1/2 × 16 1/2 in.)
Description:
The 12-inch diameter globe is covered with a black slate-like material and has metal caps on the poles. It sits and turns in a copper colored metal stand with a horizon ring. The latter is covered with a band of printed yellow paper containing three scales divided into units of 1000 miles, 15 degrees, and hours. The scales run 0-24,903 miles, 0-360 degrees, and 0-24 hours.
Text along the outside of the scales states that the following:
MILEAGE SCALE SHOWN IN STATUTE MILES
TIME SCALE APPLIES AT EQUATOR
ESTIMATED JET AIRLINER CRUSING SPEED, 600 MILES PER HOUR
ESTIMATED PROPELLER AIRLINER CRUSING SPEED, 300 MILES PER HOUR
Text along the outside of the scales states that the following:
MILEAGE SCALE SHOWN IN STATUTE MILES
TIME SCALE APPLIES AT EQUATOR
ESTIMATED JET AIRLINER CRUSING SPEED, 600 MILES PER HOUR
ESTIMATED PROPELLER AIRLINER CRUSING SPEED, 300 MILES PER HOUR
Signedon horizon stand: Copyright The George F. Cram Co., Inc., Indianapolis, Indiana
on horizon stand: Printed in U.S.A.
on horizon stand: Printed in U.S.A.
FunctionOne can make chalk marks on the globe and use it as an educational aid.
Historical AttributesThis slate globe was owned by I. Bernard Cohen, professor of the history of science.
ProvenanceProfessor I. Bernard Cohen, Department of the History of Science, Harvard University; found in his Widener Library Study after his death in 2003 by Sara Schechner, a former student who was assisting the family and university in sorting through his belongings; transferred to CHSI in 2003 but not formerly accessioned until 2016.