In Good antique condition. (see photographs).
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Material : Brass, Glass & Wooden. Finish : Antique. This is a Reproduction Item, Not Sold As Antique. Best for gift. Good Piece Of Collection.
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Item: Single tuning fork, stamped “s.b.l.” and “C1 Tony. C. Bol. Pa.”. Function: A two-pronged acoustic resonator that rings at a specific pitch when struck — used for instrument tuning, medical auditory tests and sound therapy. Condition: Good vintage condition — surface wear consistent with age and use. The fork rings cleanly when struck; no cracks or visible repairs. See photos for details. Markings: s.b.l. (maker/distributor mark?) on one side; C1 and engraved name/location on the reverse. The “C1” indicates the fork’s note designation — octave numbering varies between makers, so frequency may differ.
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This vintage 3-sided triangular Wh Smith BS 1347 ruler is a rare find for collectors of engineering and surveying tools. Made in the United Kingdom, this ruler features a unique design that is not commonly seen. Its historical significance and craftsmanship make it a valuable addition to any collection of scientific collectables. Ideal for those with an interest in engineering and surveying, this ruler is a piece of British history that showcases the precision and quality of British manufacturing. Some marks and signs of use
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(APPLICATION DATE: 4th December 1893. The drawings are often ideal for framing. 1) PATENT SPECIFICATION No. 23308.
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A griffin & George Great Britain 20 th century microscope looks like vernier model I know nothing about these have posted as many photos as possible
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PART COMPATIBILITY.
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Circa early 20th century.
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