Inscription: 27, in lower edge of original lithograph; signed W Swa.. fec. [Swainson fecit] in original lithograph; reference line, 5.0 mm from bottom edge
Watermark: RYE MILL 1817
Provenance: Victoria & Albert Museum, 2017 National Science and Media Museum, 2003 to 2017 Royal Photographic Society, number 025146 Royal Photographic Society, previous number 182