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1. Early 1920's type A Otis King's model K pocket calculator in fitted case

   This example of an early Otis King's cylindrical slide rule calculator has the rarer white on black scales. Having the serial number 5242 with no prefix letter, shows it to be one of the earliest models dating between 1921-1923 and also has the key chain loop on the top cap.

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2. Victorian Drafting / Engineering Set in Mahogany Key Lock Box - Complete Set

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3. Quality Vintage Cased BRASS STUDENT MICROSCOPE Appears Unused

   Very nice heavy quality brass student microscope in original mahogany case. Appears as new. Possibly unused.

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4. Vintage Control Panel 2 x Amp Meters, Gauges + Speaker - Steam Punk - Repurpose

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5. Astro Compass Spirti Operating Handbook (4)

   So useful. I am printing them A5. There are 6 pages A5 black and white with three illustrations. see my catalogue. a facsimile. NOT original material.

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6. 3B Scientific U15030 Precision Sphereometer- RRP £320+

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7. Antique Victorian NAPIERS 2.5" FOLDING PENCIL COMPASSES PEN DIVIDERS VGC

   In very good condition. 2.5" " closed. Pencil holder requires a lead.

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8. Lot 2 American Basic Science Club Kits Weather Station and #8 Energy

   You can't really put much more in these kits so I truly believe they are complete.

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