Holland Circle by Baumann and Kinzelbach

  • The Holland Circle was used in land surveying and is a precursor to the theodolite
  • It is made of bronze with a handsome wooden stand by German instrument makers Baumann & Kinzelbach
  • This finely-calibrated instrument is a unique and elegant piece of scientific history
  • Get complete item description here
Item No. 31-3790

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This intriguing item is almost certainly a Holland Circle by German scientific instrument makers Baumann & Kinzelbach. The Holland Circle, sometimes referred to as a Dutch Circle, was used in land surveying and is a precursor to the theodolite, an optical instrument for measuring angles. Baumann and Kinzelbach were based in Stuttgart, Germany, and in addition to crafting surveying instruments and compasses, also created a 2-foot tall "comet seeker" used at the Gotha Observatory near Gotha, Thuringia, Germany. Crafted from bronze with a handsome wooden stand and complete with its custom carrying case, this finely-calibrated instrument is a unique and elegant piece of scientific history.

Engraved "Baumann & Kinzelbach Stuttgardt"

Circa 1820

16 3/4” high x 8 1/8” wide x 8 1/8” deep
Case: 7/8" high x 9 1/4" wide x 11 1/2" deep

References:
Gotha- the Instruments of the observatory, 1988, by G. Wolfschmidt, pp. 89-90
Holland Circle by Baumann and Kinzelbach
Period: 19th Century
Origin: Other
Type: Other
Depth: 8.13 Inches
Width: 8.13 Inches
Height: 16.75 Inches

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