1790
London Sotheby's, 1270
London Sotheby's, 1570
London Sotheby's, 1615
London Sotheby's, 1541
London Sotheby's, 1690
London Sotheby's, 1926
London Sotheby's, 1605
London Sotheby's, 1711
London Sotheby's, 1535
London Sotheby's, 1893
London Sotheby's, 1798
![Study of a Rock [verso]](https://api.nga.gov/iiif/101a64f4-b845-4a7d-8271-65cf166514a5/full/843,/0/default.jpg)
