upper center in plate: IX; lower center in plate MANERBAWR CASTLE From the Inward Court / Published Setp 1775 by J. Boydell in Cheapside; lower right in plate: P. Sandby Fecit; by later hand, lower right in graphite: first publisehd in / lines
(William Weston Gallery, London); Donald Vogler, Portland, OR; gift to NGA, 2017.
- Gunn, Ann V. The Prints of Paul Sandby (1731 - 1809). Turnhout, 2015: no. 205, ii/iii