Digital Commonwealth — Boston Public Library
Top left, Hollywood invention to calibrate beauty down to a thousandth of an inch. Above, sphygmonometer used to determine which is more emotional - blonde or brunette. At lower center the young lady is holding a model of a pump fire engine invented in 1881 while at her side is the model of a gas engine invented in 1877.
[ca. January 1938]
[Information from item housing] Inventions
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