Physical description: forms part of a bound volume of "The Pencil of Nature" with extra illustrations; this extra plate comes after plate XIX
Inscription: cropped remnant of text from title, inscribed in the negative, along bottom edge; in ink, verso, 491 Hercules subduing Cacus by Brandineli Florence; circular ink stamp, verso, Patent Talbotype or Sun Pictures; in pencil, verso, possibly in Talbot's hand, Oxford 25/6 47 [possibly 25 June 1847]