Visual Materials
C1.1 - Charts miscellaneous
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C1.1 - Charts miscellaneous
Visual Materials
C1.1 - Charts miscellaneous - A chart showing appliance sales from January 1, 1912 to December 1, 1912. The lower left corner of the glass plate is cracked.
photCL SCE 02 - 01626

C1.1 - Charts miscellaneous
Visual Materials
C1.1 - Charts miscellaneous - A chart of B.T.U.
photCL SCE 02 - 01138

C1.1 - Charts miscellaneous - Chart
Visual Materials
C1.1 - Charts miscellaneous - Chart - Milk Cooling.
photCL SCE 02 - 18760

C1.1 - Charts miscellaneous
Visual Materials
C1.1 - Charts miscellaneous - A chart of the category of heat.
photCL SCE 02 - 01137

C1.1 - Charts miscellaneous
Visual Materials
C1.1 - Charts miscellaneous - A chart of the category of heat.
photCL SCE 02 - 01139

C1.1 - Charts miscellaneous
Visual Materials
C1.1 - Charts miscellaneous - A chart showing Comparative Cost of Illuminants.
photCL SCE 02 - 01771