Lot 153

Large Vintage Galileo Thermometer with Amber Glass Base & Floating Glass Spheres

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Lot 153
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Large Vintage Galileo Thermometer with Amber Glass Base & Floating Glass Spheres
Large Vintage Galileo Thermometer with Amber Glass Base & Floating Glass Spheres
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Large Vintage Galileo Thermometer with Amber Glass Base & Floating Glass Spheres

Current Bid: $10

(1 Bid)
by California Auction Company LLC
August 1, 2026 9:00 AM PDT
Live Auction
1212 E. Harding Way
Stockton, CA, US 95205

A handsome and substantial vintage Galileo thermometer, featuring a tall hand-blown glass cylinder mounted on an amber-tinted glass base. Within the sealed column are a series of precision-blown glass floats, each suspended with a brass temperature tag calibrated in degrees Fahrenheit, demonstrating the elegant scientific principle of liquid density and buoyancy first explored by Galileo Galilei. Galileo thermometers have long been prized as both functional scientific instruments and decorative objets d'art. As ambient temperature changes, the density of the surrounding liquid shifts, causing the weighted glass spheres to rise or fall, allowing the user to determine the approximate room temperature by observing the position of the floating bulbs. This example features multiple clear glass floats with brass temperature medallions ranging from approximately 72° to 78°F, housed within a tall cylindrical vessel surmounted by a rounded finial. The warm amber-toned base provides an attractive visual contrast while lending stability to the piece. An elegant addition to a library, office, study, or modern interior, this Galileo thermometer embodies the enduring appeal of scientific craftsmanship while serving as a sophisticated decorative accent. Highly desirable among collectors of scientific instruments, decorative glass, and educational antiques.

  • Literature: Galileo thermometers are based upon the principles of buoyancy and liquid density discovered by Galileo Galilei (1564–1642). Modern decorative examples became especially popular during the late 20th century, combining scientific demonstration with contemporary decorative design.
  • Circa: Late 20th Century, circa 1980–2000.
  • Condition: Very good vintage condition. The glass cylinder, base, and floating bulbs appear free from noticeable chips or cracks. The liquid remains clear, and the floating glass spheres and brass temperature tags are intact. Light age-related wear consistent with careful use and display.

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Bid Increments
From: To: Increments:
$0 $49 $5
$50 $199 $10
$200 $499 $25
$500 + $50