Monocular opaque glass viewer enclosing a print showing the Thames Tunnel.
Great Britain, approximately 1843.
1 item ; 55 mm in diameter (at base), 105 mm long
Rare Books and Manuscripts
Engineered by Marc Brunel and begun in 1825, the Thames Tunnel was the first tunnel ever built under a navigable river. Although Brunel had devised a special tunneling shield to dig underneath the river, water still came in during construction, and seven men drowned before the tunnel was completed in 1843.
Thames Tunnel (London, England) -- Pictorial works. | Tunnels -- England -- London. | Peep shows -- Specimens.