upper left in image: Pont tu te' Pryth i Wales 140 feet Span; upper right in image: JC (in monogram)
(Campbell Fine Art, London, 10 March 1998); Donald Vogler, Portland, OR; gift to NGA, 2017.
- Lumsden, E.S. "The etchings of John Clerk of Eldin." Print Collector's Quarterly 12 (1925): no. 48
- Bertram, Geoffrey. The Etchings of John Clerk of Eldin. Taunton, 2012: no. 64, v/v