A collection of potentiometers
all from the same junk box, the most recent (below) is a 5Kohm
wirewound type made by Colvern and dated 1952.
The oldest are two from the days of
breadboarding carrying nuts for wiring. For some odd reason the
manufacturer, Elpro decided to add a metal tab carrying the resistance
value of 5,000 ohms instead of printing this on the body.
The one opposite and the last in the
collection have no makers' name and are probably foreign imports.