A PALMER'S COMPUTING SCALE AND FULLER'S TIME TELEGRAPH CIRCULAR SLIDE RULE
A PALMER'S COMPUTING SCALE AND FULLER'S TIME TELEGRAPH CIRCULAR SLIDE RULEPrinted by John E. Fuller, Boston, 1847The first side labelled PALMER'S, COMPUTING SCALE, IMPROVED BY, FULLER. and variously inscribed with accreditations including Entered according to Act of Congress in the year 1843 by Aaron Palmer in the Clerks Office of the District Court of the State of Massachusetts, and by J.E. Fuller 1847, over Engraved by George G. Smith, 188 Washington St. Boston to the centre of the revolving disc annotated with various computational scales with instruction Use the inner circle for Dollars, Cents & Mills, or Pounds Shillings & Pence, the reverse labelled FULLER'S, TIME TELEGRAPH with accreditation Entered according to Act of Congress in the year 1847 by John E. Fuller in the Clerks Office of the District Court of the State of Massachusetts, over Engraved by G.G. Smith, Boston to the centre within scales divided for annual calendar revolving within various computational scales to allow calculation of numbers of days or weeks between two dates and with two blocks of text titled Directions for weeks and Directions for days, with anthemion and scroll printed spandrel decoration to angles, with a PHILIPS' PLANISPHERE by George Philip and Son Limited, London, early 20th century with circular card printed with celestial map within outer calendar scale rotating within sleeve pierced with aperture for revealing the nights sky at any given date of the year labelled in gilt PHILIPS' PLANISPHERE, SHOWING THE PRINCIPAL STARS, VISIBLE FOR EVERY HOUR, IN THE YEAR to centre and with EXPLANATION test to verso (2).The circular slide rule 28.5cm (11.25ins) square; the planisphere 12.25ins (31cm) wide. Provenance: The horological library of Lawrance Hurst.
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A PALMER'S COMPUTING SCALE AND FULLER'S TIME TELEGRAPH CIRCULAR SLIDE RULEPrinted by John E. Fuller, Boston, 1847The first side labelled PALMER'S, COMPUTING SCALE, IMPROVED BY, FULLER. and variously inscribed with accreditations including Entered according to Act of Congress in the year 1843 by Aaron Palmer in the Clerks Office of the District Court of the State of Massachusetts, and by J.E. Fuller 1847, over Engraved by George G. Smith, 188 Washington St. Boston to the centre of the revolving disc annotated with various computational scales with instruction Use the inner circle for Dollars, Cents & Mills, or Pounds Shillings & Pence, the reverse labelled FULLER'S, TIME TELEGRAPH with accreditation Entered according to Act of Congress in the year 1847 by John E. Fuller in the Clerks Office of the District Court of the State of Massachusetts, over Engraved by G.G. Smith, Boston to the centre within scales divided for annual calendar revolving within various computational scales to allow calculation of numbers of days or weeks between two dates and with two blocks of text titled Directions for weeks and Directions for days, with anthemion and scroll printed spandrel decoration to angles, with a PHILIPS' PLANISPHERE by George Philip and Son Limited, London, early 20th century with circular card printed with celestial map within outer calendar scale rotating within sleeve pierced with aperture for revealing the nights sky at any given date of the year labelled in gilt PHILIPS' PLANISPHERE, SHOWING THE PRINCIPAL STARS, VISIBLE FOR EVERY HOUR, IN THE YEAR to centre and with EXPLANATION test to verso (2).The circular slide rule 28.5cm (11.25ins) square; the planisphere 12.25ins (31cm) wide. Provenance: The horological library of Lawrance Hurst.
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