Miniature wire end valve

[djrm]

Yesterday I was told they are from flying bomb 'doodlebug' destroying shells. I also found a selection of other types in a box too. The larger one is triod construction with four wires and marked CV183. Another one has five wires and looks like a tetrode, this has numbers on it . Another one is fitted in a metal tube similar to an old transistor - unmarked, again with four pins.

brief information about cv183 here:
https://www.valvecollector.uk/cv183.htm

From top: 

long 4 wires
CV183 168
CV183 173

metal 4  wires
unmarked
black dot

short five wires
green dot, UD1 559 213
green dot, UD1 559 236