This is a beam-switching tube for counter applications. The tube was used in counting modules from Philips as well as in the Philips PW4032 Electronic Counter. Complete datasheets are found below.
Other sites with info about the use of this rare tube:
http://www.tubecollection.de/ura/beam_deflection.htm
Ronald's electronic Project Site

Some more info can be found at Mike's Electric Stuff
Swedish mil. nr M2465-405000