Regency mahogany adjustable book stand, 2nd quarter 19th century, the shelf and backrest mounted to a telescoping standard with shaped thumb knobs to adjust the height and tilt, 19 1/2" to 23 1/2" H x 19 3/4" W x 8 1/2" D. Provenance: Collection of Mr. Bruce McCashin, Vero Beach, Florida.