1 x Philips DM160 indicator tube NOS 

Filament voltage 1V

Filament current 30mA

Anode voltage 50V

Anode current (max) 5 µA

Grid resistor 100K

Easy to use as indicator, the grid control the light, the setup can do positive logic to turn on the light, 0 or negative to fully turn it off.

If you have any questions about the different possibilities of controlling these tubes, don't hesitate to ask.

Full datasheet available here: https://frank.pocnet.net/sheets/009/d/DM160.pdf

See pictures