~10mm symbol tube manufactured by Mullard

The ZM1262 is a clear glass symbol nixie tube manufactured by Mullard. It has a very special spiral symbol, i currently have no info for what the spiral symbol is used or any other information about the tube. There is another tube, the ZM1263 which has the same symbols.
Brand / Manfacturer Mullard
Same Types
Likely Tyes
Symbol height in mm ~10
Characters / Symbols +,-,spiral
Decimal point none
Base / Socket 0
Starting Voltage (typ) tested at 170V, 10kOhm V
Maintaining Voltage (typ) 0 V
Current per Segment 0mA
Reccomend Resistor 0