Lamp - Iron - Signal Lamp Osmeka German

Authentic vintage German railway signal lamp featuring an OSMEKA-branded metal housing and an original-style HELLA glass lens.
This impressive, heavy-duty industrial lamp was most likely designed for railway signalling, possibly for use on German steam or diesel locomotives.
Its most distinctive feature is the mechanically operated red filter, which can be rotated using an external lever, allowing the lamp to switch between white and red signalling light without changing the bulb.
The lamp is believed to date from approximately the 1930s–1960s, although the exact manufacturing date has not been confirmed.