Instruments.
See Astronomical instruments. Ophthalmometry. Chemistry. Apparatus. Optical instruments. Drawing instruments. Percussion instruments. Electrical apparatus. Physical apparatus and Gauges. instruments. Mathematical instruments. Scientific instruments. Medical instruments. Surgical instruments. Meteorological instruments. Surveyors’ instruments. Musical instruments. Time-keepers.
Nautical instruments.
This card was printed at the Boston SS Public Library, August 16, 1927.
N3734 :