Visitor's pass enabling Brunel to enter the Visitors' Archway of the Thames Tunnel during construction. The name 'M I Brunel' & the year 1841 are added by hand. The rest of the pass is printed 'To the Barrier Gate Keeper, Visitors' Archway Pass the Bearer to the Shield N.B. It is requested that no money be given to any person on the Works, as there is a Box for voluntary contributions towards the sick fund'. The last sentence refers to giving money to the workers involved in the tunnel construction. Printed on a sheet of grey paper.
