


Sheet of commercially pure titanium, with argon arc weld
1958

Square aluminum sheet, with central circular depression shape, plus small tear
1960-1980

Aluminium alloy sheet ('Y' alloy Cu 4%, Ni2%, Mg 1.5%)

Square aluminum sheet, with central circular depression shape
1960-1980

Square aluminum sheet, with central circular protruding shape
1960-1980

Square aluminum sheet, with central irregular shaped torn hole
1960-1980

Square aluminum sheet, with central circular depression shape
1960-1980

Square aluminum sheet, with central circular depression shape, plus tear
1960-1980

Square aluminum sheet, with central circular depression shape
1960-1980

Square aluminum sheet, with central circular depression shape
1960-1980

Square aluminum sheet, with central circular depression, which has been torn through middle
1960-1980
London & South Western Railway Company department sheets of locomotives and departures
1899