Ha ha, going to give this old thread a bump because funnily enough I have only recently been looking at some of these very same switches and was pondering over a possible attenuator build myself, only last night talking with another bottleheader about seeing them listed on ebay and low and behold while googling for references and further details on the switches a google image search pulled this very topic page up lol.
Did anyone ever get round to putting one together as a attenuator? While its not going to be the most practical item to install. There is I think decent potential for interesting and relatively inexpensive passive pre project using what looks to be a bit of well made interesting cold war Russian surplus kit. I was thinking along the lines of stacking two pairs together to get four plates for a ladder type attenuator. Initially I was thinking of mounting in a wood block but having a better view of the switches that are posted here mounting them in a clear Acrylic tube might make for a bit of a fun conversation piece.
So here is the link to the switches I have pulled the trigger on also the seller has single and twin plate types available.
http://www.ebay.co.uk/itm/251494056457?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT