M0017342EA: Upper surface of a brass equinoctial ring-dial, c.1700 / M0017343EA: Horary Quadrant, c.17th century

Previous title, replaced October 2020: Equinoctial ring-dial, circa 1700?

Photograph of the upper surface of an equinoctial ring-dial and one side of a Horary Quadrant showing hour lines for unequal hours. The dial is from c.1700, unsigned and undated. It was acquired by the Wellcome Historical Medical Museum at an unknown point and accessioned in 1925 (accession number R16013). The quadrant is unsigned and undated, possibly 17th century, German or Flemish. It was acquired by the Museum at an unknown point and accessioned in 1924 (accession number R15476) Neither instrument is held by Wellcome Collection. Related images: M0017341, M0017342EB, M0017343EB

April 1959

1 photograph glass plate negative; 10.2 x 12.7 cm

Wellcome Collection holds the accession register which provides entries for the items: R16013 and R15476

Copyright is held by Wellcome Collection

Catalogue data comes from a combination of entries in the original glass plate registers, metadata created when the glass plates were digitised in the early 2000s and enhancements made by the cataloguer in 2022.

Please consult the digitised version as this item is fragile. Email library@wellcomecollection.org to request access to the physical item.