Gather your pennies - this may be your only chance to own a pair of bona fide Frances Elkins loop chairs. In the Sotheby's New York In Celebration of the English Country House sale on April 9th, all four of the extant documented Elkins loop chairs will be on the block.
Sold as pairs - lots 84 and 85 - circa 1934, each with an estimate of $6000-$8000.
You may see a pair of white ones for sale at Doyle New York attributing them to Frances Elkins. Caveat emptor: they do not have the dipped seat and they are not documented! If you're after the look alone, then the estimate is a friendlier $1200-1800.
UPDATE: Each pair of Elkins Loop chairs sold for $5938 (including buyers premium) at the April 9, 2009 Sotheby's New York sale. A very good buy.