Universal equinoctial ring dial for latitudes 0°-90° North. Standard dial (see related terms) except for the following details:-

The dial is for northern latitudes only. The slider moves in the grooved rim of the meridian ring, on which there is a degree scale divided clockwise from top [0°]-[90°]. There is a wheatsheaf pattern on the remainder of the ring and the reverse side is plain. On the inner rim of the equinoctial ring is an hour scale, a date scale and a zodiac scale. There is a wheatsheaf pattern engraving on the bridge support and a foliate pattern engraving on the suspension bracket.

This design is a thick and heavy dial of lower quality than contemporary English versions. The equinox dates (20 March and 21 September) imply a continental market, and in many ways the instrument is more reminiscent of German dials. On the obverse side of the meridian ring, it is signed 'William Elmes in Morefields'.

For more information regarding this dial please refer to the OUP & NMM catalogue, 'Sundials at Greenwich'.