- Museum number
Gunter quadrant made of brass.
The face is labelled with a number of scales, listed from the outside edge to the centre: degree scale to 90˚, labelled every half degree and numbered every 10˚; concentric to this is a logarithmic scale from 0-100-0, labelled every degree and numbered every 10˚. Between 15˚(December) and 61˚(July) on the degree scale, is a calendar scale, each month being represented by its initial letter. Within this is an arc which represents the Tropics and borders a set of essential scales and arcs, some of which are based on stereographic projection, bordered on the opposite side by another arc representing the equator. Joining the arcs for the Tropics and equator is a dotted line representing the horizon, from 0-40 degrees, every degree is labelled with a dot and numbered every 10˚ from 10˚-30˚. A dotted line representing the ecliptic also joins the arcs which represent the Tropics and equator, and is labelled with symbols for the signs of the zodiac. Between the arcs for the for the Tropics and equator are hour lines, labelled every half hour with a star and numbered every hour on the left half of the line representative of the equator; and azimuth curves, labelled every 5˚ with a star and numbered every 10˚ to 120˚ along the right half of the line representative of the equator and right hand edge which represents the meridian. The left edge, representing the right horizon, is labelled for declination with a scale 0˚-23 and a half˚, labelled every half degree, numbered every 5˚. Within the grid of arcs between the lines for the Tropics and equator are numbers and small inscribed stars representative of the locations of six stars, named in an oval shield above the line for the equator; the inscription is centrally aligned and reads (Lower case letters indicate the use of Italics on two of the alternate lines of text):
.1. / OCVLVS (Taurus symbol) / 2 / *Procyon* / COR LEONIS / Arcturus 4 Aquila 5 / EXT ala PEG:6 / M.DC.XLIV
The star names are surrounded by an oval band in which is written (from apex): *ABRAHAM WATLINGTON FECIT * VMBRA SVM
The oval shield is surmounted by a daffodil-like flower and decorated with scrolls surrounding two grotesque figures. A small 'AW’ is incorporated into the scrolling design at the base.
At the apex of the quadrant, perpendicular to the left hand edge, one sight remains; clearly visible along the right hand side is the location where another was once attached.
On the reverse is a fixed circular hour scale numbered 1-12, twice, from the apex and labelled every 5 minutes. Spanning the region of this scale from 6-12-6 is an external degree scale from 0˚-90˚-0˚, labelled every degree, numbered every 10˚. Outside this scale, in the region of 0˚-50˚ on each side, are two logarithmic scales from 0-90 units. Outside the scales the quadrant is decorated with grotesque figures amongst fruit, flowers and foliage.
Within the hour scale is a rotating volvelle, riveted to the quadrant in the centre, labelled on the outside edge with a calendar scale labelled every day and numbered every 5 days, within the scale each month is labelled with its initial letter. At various points along the calendar scale six stars are inscribed with a number, most likely relating to the six stars named on the front of the quadrant. Within the calendar scale, is a De Roias grid labelled 11-1 along the top and 1-11 on the bottom. Surrounding the grid four constellations are labelled with stylised illustrations incorporating the locations of the stars within them. The constellations are: Ursa Major, Cepheus, Draco and an unknown constellation symbolising a man with a goat. Where the grid overlaps the images, the stars of the constellations are still indicated although the illustrations become dotted lines.
- Production date
Length: 118 millimetres (radius)
- Curator's comments
- This quadrant, the only one signed with the full name ‘Abraham Wallington’, is very similar to one in the Greenwich Maritime Museum, reg. no. NAV1032, dated to 1640 but signed only with the initials ‘AW’, and one in the Cambridge Whipple Museum, acc. no. Wh: 1765; see H. Higton, Sundials at Greenwich, Oxford 2002, no. 323, pp. 338-9.
- Not on display
Latest: 2 (Jul 2015)
5 (Jan 1996) Verdigris. Sighting-vane missing.
- Acquisition date
- Britain, Europe and Prehistory
- Registration number