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27. Polyhedral dial by Nicolaus Kratzer, London, c.1525  Type: instrument Inv. No. 54054 Source: MHS  The dial is unsigned but was made for Cardinal Wolsey (bearing his arms, the arms of York Minster and two representations of a cardinal’s hat), almost certainly by Nicholaus Kratzer. He was lecturing at Corpus Christi College, Oxford in the 1520s, under Wolsey’s patronage, on elementary astronomy, the construction of the astrolabe and Ptolemy’s geography.

Polyhedral sundial made for Cardinal Wolsey (bearing his arms, the arms of York Minster and two representations of a cardinal’s hat), almost certainly by Nicolaus Kratzer although the dial is unsigned.

A very fine early 18th century mechanical equinoctial dial by Johan Willebrand of Augsburg.

A very fine early century mechanical equinoctial dial by Johan Willebrand of Augsburg.

Collections — Adler Planetarium

Collections Department

America's First Planetarium is Hoarding the Ultimate Cabinet of Curiosities

A solid brass sundial compass. A Precision sundial for accurate time measurements using the sun.

A solid brass sundial compass. A Precision sundial for accurate time measurements using the sun. This looks like some sort of magical implement

A theodolite is a precision instrument for measuring angles in the horizontal and vertical planes. Theodolites are used mainly for surveying applications, and have been adapted for specialized purposes in fields like metrology and rocket launch technology.:

Theodolite: precision instrument for measuring angles in the horizontal and vertical planes.

Polyhedral dial - Made c.1780-1810 by J.G. Kleininger - National Maritime Museum, Greenwich, London, Gabb Collection. Photo by Royal Museums Greenwich Prints.

Polyhedral dial - Made by J. Photo by Royal Museums Greenwich Prints.

Cole astronomical compendium dial - National Maritime Museum

A compendium dial made by Humfrey Cole (circa One page of this…

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