Square shaped electric light switch made of phenol formaldehyde

Made:
1920-1940
Square shaped electric light switch made of phenol formaldehyde

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Square shaped electric light switch made of phenol formaldehyde
Science Museum Group
© The Board of Trustees of the Science Museum

Square shaped electric light switch made of phenol formaldehyde, made in England, 1920-1940

Details

Category:
Plastics and Modern Materials
Object Number:
2005-347
Materials:
phenol formaldehyde (unspecified) and copper (metal)
Measurements:
: 1.1811 x 2.9528 x 2.9528 in.; 30 x 75 x 75 mm
type:
elictric light switch
credit:
Frangenberg, Tomas