Polyethylene terephthalate filaments spool, 1943-1944
1943-1944
Polyethylene terephthalate filaments spool, 1943-1944
1943-1944
Triangular polythene medallion
1938
Samples of polyethene, c. 1935.
1935
Spools of polyethylene terephthalate filaments, 1943-1944.
1943-1944
Polythene walking stick
1938
Sample of extruded polyethylene, 1938
1938
Polyethylene terephthalate filaments spool, 1943-1944
1943-1944
Cascelloid plastic 'Sqezy' washing-up liquid bottle, 1958.
1958
Apparatus used to discover polyethylene, 1933.
1933