Red, blue and yellow spectra, with the solar spectrum Product:Fine art poster These apply to both the

These apply to both the front and back

' Inscribed in pencil lower left '1668' and lower right '1 Thomas Flatman was elected a Fellow of the Royal Society in 1668

parked outside a general store

Peace following the Treaty of Amiens signed on 27 March 1802

with four pearl buttons on the cuff

Red, blue and yellow spectra, with the solar spectrum Product:Fine art poster These apply to both theFigures showing red, yellow and blue spectra with curves of maximum intensity (figures 1 3) and their combination into a solar spectrum (figures 4 5). Plate 2 from the paper 'On a new analysis of solar light, indicating three primary colours, forming coincident spectra of equal length', by David Brewster, originally published in Transactions of the Royal Society of Edinburgh, volume 12 (1834) pp. 123 136. Inscribed upper right 'PLATE II. Roy. Soc.