Everard Auctions and Appraisals
Live Auction

Winter Southern Estates and Collections: Session I

Tue, Feb 28, 2023 10:00AM EST
Lot 484

Rare William Hart Backstaff, Portsmouth, NH, 1763

Estimate: $4,000 - $6,000

Bid Increments

Price Bid Increment
$0 $10
$100 $25
$500 $50
$1,000 $100
$3,000 $250
$5,000 $500
$10,000 $1,000
$30,000 $2,500
$100,000 $5,000
$300,000 $10,000

Property from a Savannah, GA Estate


Rare William Hart (1734-1812) Backstaff or Davis Quadrant, Portsmouth, NH, 1763, the backstaff or Davis quadrant was used to observe the altitude of the sun at sea and was an important navigational instrument, curiously this was not made for a ship captain but for William Parker a Supreme Court Judge, this one probably mahogany and boxwood, the large arc divided from 0-25 degrees and on the higher lattice scale between 65-90 degrees, the smaller arc 0-60 degrees, the frame with some decoration on the large arc, with inlaid plaque inscribed 'Made by William Hart in Portsmouth NE, for William Parker, 1763'. William Parker (1703-1781) was an attorney and judge in Portsmouth, New Hampshire. He was admitted to the bar in 1732, and practiced law in Portsmouth. He was later appointed surrogate judge of the admiralty, and in 1771, he was appointed to the superior court of judicature for the province of New Hampshire. William Parker also served in the New Hampshire House of Representatives from 1765 to 1774. In 1763, he received an honorary A.M. from Harvard College.

Measurements: Height: 24 1/2 in. x Width: 14 1/4 in. x Depth: 5 in.


Fair condition, loss to end of large arc, age crack to wood of small arc, other age cracks, wear to edges, light scratches, repair to detachable piece.

Notice to bidders: The absence of a condition report does not imply that the lot is in perfect condition or completely free from wear and tear, imperfections, or the conditions of aging. Complete condition reports are available by request, no later than 24 hours prior to the live auction. All lots are offered and sold 'as is', and Everard Auctions will not provide refunds based on condition. Timepiece movements, lighting and electrics have not been tested, and art has not been examined out of the frame unless otherwise stated. We do not guarantee the condition of frames. By placing a bid, either in person, by phone, absentee or via the Internet, you signify that you agree to be bound by the conditions of sale. Everard Auctions does not provide any shipping or packing services. We recommend that all potential buyers obtain pack/ship estimates prior to bidding. Please contact us for a list of recommended shippers.

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