Details
An 18th-Century English boxwood horological quadrant,
with two brass sights on the upper edge, punched with the scales of Edmund Gunters small portable quadrant, for the more easie finding of the houre and azimuth., with shadow square divided to 50 at the apex, and an hour and minute scale, with plumb line and lead plummet, the curved edge divided 0-90 into half degrees and numbered in tens, the next scale marked with the months between the solstices, 21st of December to 21st of June, above this scale are the hour arcs and azimuth arcs, all letters and numbers punched, the back plain, the edge with drilled hole, probably to secure the original plummet (now lost), the quadrant constructed of two pieces of boxwood with tennon joint glued -- 7in. (17.8cm.) radius
See Colour Illustration
with two brass sights on the upper edge, punched with the scales of Edmund Gunters small portable quadrant, for the more easie finding of the houre and azimuth., with shadow square divided to 50 at the apex, and an hour and minute scale, with plumb line and lead plummet, the curved edge divided 0-90 into half degrees and numbered in tens, the next scale marked with the months between the solstices, 21st of December to 21st of June, above this scale are the hour arcs and azimuth arcs, all letters and numbers punched, the back plain, the edge with drilled hole, probably to secure the original plummet (now lost), the quadrant constructed of two pieces of boxwood with tennon joint glued -- 7in. (17.8cm.) radius
See Colour Illustration