'The Thames Tunnel' peepshow, c 1851.
© Science Museum / Science & Society Picture Library
Hand-coloured lithographed peepshow in six sections. The cover scene shows the Thames Tunnel staircase with vignettes including the Crystal Palace and Parliament buildings. The influx of visitors to London for the Great Exhibition of 1851 stimulated the production of a vast quantity of souvenirs, including this topical peepshow. The long arcades of the Crystal Palace and of Marc Brunel's Thames Tunnel (opened in 1843) were ideal subjects for the peepshow, a simple optical toy which had first become popular in the eighteenth century.