Mathematical drawing in pencil and ink, the central scale line is in pencil with curves drawn either side in ink with faint intersection lines drawn in pencil. The paper had been folded in half.
Inscription: Inscribed by Ostroff with: '23377'. Pencil drawing of a spectrum with a wrapper in Sir David Brewster's handwriting and inscribed with 'Place E6/ Place [?]/ In the Spectrum'. Originally mounted on a piece of card inscribed with '1832-DB'.
Inscription: Inscribed in pencil; 'Talbot WHB'. Genre: Urban Topographical Photography A hand-drawn map of Italy in ink with the various regions coloured in yellow, red, green and blue.
Inscription: Inscribed in pencil; 'Talbot'. Genre: Urban Topographical Photography A hand-drawn map of New Zealand, showing the grid, with the islands coloured in yellow.
Inscription: Inscribed in pencil on verso, probably by Ostroff: '01910'. Engraving of a botanical specimen; it shows various sketches of the plant's leaves, buds and stem.