Classification
Description
A small cylindrical push-through switch, with rounded, tapering ends, made from dark brown compression moulded phenol formaldehyde with an ivory coloured urea formaldehyde switch. Circa 1920s - 30s.
Object number
AIBDC : 009187SA
Date
1920 - 1939 (circa)
Country
Method
Material
| plastic | |
| PF | |
| phenol formaldehyde | |
| bakelite - generic term | |
| UF | switch |
| urea formaldehyde | connectors |
Dimensions
Length
58mm
Diameter
20mm