Y level
Datecirca 1880
Inventory Number5210
ClassificationSurveyor's Level
Subject
Maker
William Albert Schmolz
1827-1891
User
Vienna University of Technology
founded 1815
User
Department of Geology and Geography, Harvard University
1890 - 1961
User
Department of Mineralogy and Petrography, Harvard University
founded 1894
Cultural Region
Place of Origin
Place of Use
Dimensionslevel: 11.1 × 17.2 × 27 cm (4 3/8 × 6 3/4 × 10 5/8 in.)
case: 13.8 × 30 × 19.9 cm (5 7/16 × 11 13/16 × 7 13/16 in.)
case: 13.8 × 30 × 19.9 cm (5 7/16 × 11 13/16 × 7 13/16 in.)
DescriptionSurveyor's level of the Y pattern, with a micrometer screw for vertical adjustments. Telescope focuser is on the side of the tube. The supports for the telescope are carried on a beam which revolves on a central axis. There is a horizontal circle with a silver scale divided into degrees 0°-360° with a vernier. There is a fine adjustment screw.
The horizontal plate is mounted over a tripod socket with leveling screws. The socket has a side clamping screw.
The horizontal plate is mounted over a tripod socket with leveling screws. The socket has a side clamping screw.
Signed[check instrument ]
Curatorial Remarks"Austria" did not show up in the location thesaurus as an alternate name. See also constituent entry for Vienna University of Technology.
Missing spirit level Engraved on the telescope tupe: "K. K. poytechn. Institut in Wien. Chr. Starke" Instrument category: ALIGNING
Bausch, Lomb, Saegmuller Company
Date: 1905-1907
Accessories: screwdriver; key; dust cap; sunshade; carrying case; tripod (5162b)
Object number: 5162a
Benjamin Martin
Date: circa 1765
Accessories: small wooden base made by Ebenezer Gay in 1976
Object number: 0068a
Johann Christoph Voigtländer
Date: circa 1754
Accessories: wooden display stand
Object number: DW0806
William Cary
Date: 1825-1850
Accessories: oak case with brass hinges and hooks; plastic wrapping
Object number: 5220
C. L. Berger & Sons
Date: circa 1902
Accessories: pine case with lock (key not found); screwdriver; leather strap; sunshade; dust cover; tripod (see 5161b)
Object number: 5161a
Jean Lefebvre (II)
Date: circa 1740
Accessories: wooden display stand
Object number: 5217
R. Iseli
Date: circa 1880
Accessories: walnut case with two adjustment tools, objective lens cap, and lens shade; Iseli trade card (inside box lid)
Object number: 5229
Peter & John Dollond
Date: 1780-1800
Accessories: mahogany box with brass hooks, hinges, and handle; tripod (see 5240b)
Object number: 5240a
Spencer, Browning & Rust
Date: circa 1800
Accessories: mahogany case with brass hooks and hinges; lens cap
Object number: 5137