A Chippendale carved cherrywood desk sold for $665,000 at Christie's New York on January 23, an increase of 10.8% on a $600,000 estimate.
The lot was made in 1785 in Lancaster, Pennsylvania.
Lancaster became one of the largest and most prosperous interior towns during the 18th century, and soon became a centre for cabinetmaking.
The present lot is typical of work from around the local area and displays both German and English woodworking traditions, a result of the mix of immigrants in the region.
It was acquired by legendary antiques dealer Israel Sack during the 20th century, further enhancing its status among collectors.
A portrait of Sarah Chandler Emerson by Ruth Whittier Shute and Samuel Addison Shute made $173,000, a 246% increase on a valuation of $50,000.
The husband and wife pair painted the great and the good along America's eastern seaboard during the 19th century. Ruth would draw the initial outline, with Samuel finishing the portrait off with paint.
Emerson was the wife of a Massachusetts based shoemaker, although little is known about either her or her husband.
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