Circular button of brown cast phenolic

Circular button of brown cast phenolic

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Circular button of brown cast phenolic
Science Museum Group
© The Board of Trustees of the Science Museum

Circular button of brown cast phenolic, pierced centrally with two holes, mid 20th century?

Details

Category:
Plastics and Modern Materials
Object Number:
1980-676/224
Materials:
pf
type:
button
credit:
Purchase (Roger Newport)