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1 gallon glass bottle "BENZENE" empty

1 gallon glass bottle "BENZENE" empty

Central Scientific Company
early 20th Century
2 bakelite pulleys fork-mounted on rods

2 bakelite pulleys fork-mounted on rods

Central Scientific Company
circa 1929
2 laboratory end supports for holding a single horizontal rod

2 laboratory end supports for holding a single horizontal rod

Central Scientific Company
1900-1925
2 printed centimeter scales

2 printed centimeter scales

Central Scientific Company
early 20th Century
2 wave siren disks

2 wave siren disks

Rudolph Koenig
circa 1875
3 laboratory end supports for holding a single horizontal rod

3 laboratory end supports for holding a single horizontal rod

Central Scientific Company
1900-1925
4 Tolles eyepieces

4 Tolles eyepieces

Robert B. Tolles
1860-1874
30 Lantern slides belonging to William James

30 Lantern slides belonging to William James

A. T. Thompson & Company
circa 1875
35mm Prado slide projector

35mm Prado slide projector

Ernst Leitz (company)
1950-1960
Abney reflecting level and clinometer

Abney reflecting level and clinometer

Troughton & Simms
circa 1910
air pump

air pump

Edward Samuel Ritchie
circa 1850
Alluard dew point gauge

Alluard dew point gauge

Central Scientific Company
1900-1930
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