WWII German fighter navigation beacon indicator - unused in unopened box.

Unopened cartboard box about 3x6" contaning Aid for Radio Navigation. Surveillance Devices.

Also on label:

Stuck 1

Baumeister (builder): AFN 2

Ln: 27002

Mit Glimmerlampe und Stecker (with mica lamp and plug)

Anyone interested please email me direct. Tnx!