Bibframe Instance
TitleDevice takes time signal from pendulum of clock [...]ingenius apparatus takes a time signal from the pendulum. A clock without mechanical contact and the time thus [...] accurate to a small fraction of a second variation [...] day. This device was invented by R.E. Gould, Chief of Time Section of the U.S. Bureau of StandardsNotephysical details: glass Applies To: Applies To: all Title transcribed from caption cardDate based on date of negatives in same rangeGeneral information about the Harris & Ewing Collection is available atCould not render: bf:electronicLocatorDimensions4 x 5 in. or smallerExtent1 negativeProvision ActivityPublication: United States 1926 Publication: [1926 June or July] CarriersheetCould not render: bf:code Usage And Access PolicyNo known restrictions on publication. For more information, see Harris & Ewing Photographs - Rights and Restrictions InformationCould not render: bf:electronicLocatorAcquisition SourceDLC Stock Number:LC-DIG-hec-34182 (digital file from original negative) 