25.5mm numeric tube manufactured by Unknown

The GN-1 is a medium sized end view numeric nixie tube. It was produced by STC and Lorenz. This tube is very old an rare, because it has hand bend digits and is relatively large. This tube normally has a black shrink-sleeve over the side glass,which has printed the manufacturers logo, but sadly the sleeve is missing.
Brand / Manfacturer Unknown
Same Types
Likely Tyes
Symbol height in mm 25.5
Characters / Symbols 0-9
Decimal point none
Base / Socket 0
Starting Voltage (typ) 200 V
Maintaining Voltage (typ) 0 V
Current per Segment 0mA
Reccomend Resistor 18kOhm @ 200V, 33kOhm @ 250V, 47kOhm @ 300V according to datasheet