Antique Pair Blue Twisted Glass Laboratory Stirring Rods 18th-19th C Scientific for Sale

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Antique Pair Blue Twisted Glass Laboratory Stirring Rods 18th-19th C Scientific For Sale

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Antique Pair Blue Twisted Glass Laboratory Stirring Rods 18th-19th C Scientific:
$164.95

Antique Pair of Twisted Glass Laboratory Stirring Rods

Pair of antique hand-worked glass laboratory stirring rods in the Bristol or Nailsea tradition, 18th-19th century. Each has a pale blue-green color, tightly spun shaft, substantial rounded stirring head, and smaller rounded terminal. These are well documented in the British scientific collection and listed as 18th/19th century almost identical design.

The spiraling continues along the full length of each rod and expands across both terminals. Slight variations in shaft diameter, dimensions, weight, and finish, clearly hand spun. They're heavy and tactile, nice to hold. Original pontil and finishing scars remain visible where the glass was detached and lightly ground during manufacture, not polished. They're beautiful, but they were tools.

Measurements

Longer rod: approximately 244 mm long with a 47 mm stirring head; weight 212 g
Shorter rod: approximately 238 mm long with a 49 mm stirring head; weight 230 g
Sold together as the photographed pair

Condition

Very good antique condition with no cracks or later breaks observed.
Light contact pitting is present at the ends of the large stirring heads, consistent with previous use.
Original pontil and finishing areas are irregular, lightly ground, no polish, retaining minor pitting and discoloration within their recesses.
Slight variations in length, weight, shaft diameter, and head size are natural characteristics of the handmade construction.
Gently cleaned; zero conservation performed.

Fulfillment

Each rod will be individually wrapped and packed together in a reinforced gusseted box for safe transit. Ships by USPS, UPS, or FedEx Ground. Typically ships within 1 business day. Rates to Alaska and Hawaii differ from continental US; please message for quote. International shipping available through 's Global Shipping Program.