ZM1000
zm1000b.jpg (9028 bytes)
ZM1000 has 11 cathodes shaped as:
0 1 2 3 4 5 6 7 8 9 and a decimal point.
Used in digital displays of many kinds like clocks, voltmeters and frequency counters. The only socket available for this tube was a tiny thing for PCB mounting. The numerals are 14 mm high.

See also ZM1001 and ZM1002