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SUNDIALS. A collection of sundial and horology ephemera, 17th- and 18th-century, comprising: a sheet with an engraving of an horary quadrant (the hour lines pinpricked to transfer the projection), Parma, 1601, and a projection for a pillar dial, Parma, 1608 (one page); a manuscript calendrical volvelle; an engraved quadrant for a surveying square; a manuscript treatise on sundials (15 pages); a partial manuscript planetary table (12 pages); an annotated manuscript diagram for the use of a shadow square (one page); a manuscript table of calendrical data (one page); a manuscript diagram of a sundial construction (one page); a leaf of manuscript astronomical calculation; 7 manuscript discs for a volvelle; a manuscript calendar of saints days (17 pages); and two manuscript projections for pillar dials.
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SUNDIALS. A collection of sundial and horology ephemera, 17th- and 18th-century, comprising: a sheet with an engraving of an horary quadrant (the hour lines pinpricked to transfer the projection), Parma, 1601, and a projection for a pillar dial, Parma, 1608 (one page); a manuscript calendrical volvelle; an engraved quadrant for a surveying square; a manuscript treatise on sundials (15 pages); a partial manuscript planetary table (12 pages); an annotated manuscript diagram for the use of a shadow square (one page); a manuscript table of calendrical data (one page); a manuscript diagram of a sundial construction (one page); a leaf of manuscript astronomical calculation; 7 manuscript discs for a volvelle; a manuscript calendar of saints days (17 pages); and two manuscript projections for pillar dials.

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SUNDIALS. A collection of sundial and horology ephemera, 17th- and 18th-century, comprising: a sheet with an engraving of an horary quadrant (the hour lines pinpricked to transfer the projection), Parma, 1601, and a projection for a pillar dial, Parma, 1608 (one page); a manuscript calendrical volvelle; an engraved quadrant for a surveying square; a manuscript treatise on sundials (15 pages); a partial manuscript planetary table (12 pages); an annotated manuscript diagram for the use of a shadow square (one page); a manuscript table of calendrical data (one page); a manuscript diagram of a sundial construction (one page); a leaf of manuscript astronomical calculation; 7 manuscript discs for a volvelle; a manuscript calendar of saints days (17 pages); and two manuscript projections for pillar dials.
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Robert Tyrwhitt

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