In a message dated 5/26/00 1:31:51 AM Eastern Daylight Time, dlinder(a)uiuc.edu
writes:
     I have recently stumbled on large stash of
MicroChannel Ethernet Cards.
  I'm thinking of taking the whole bunch (brother & I have a large ps/2
  colelction), but would have leftovers for all to partake in.  I heard
  these are generally hard to find, so let me know if you're interested.
     Ah yes, if I remember, they're various makes & models. 
keep a lookout for cabletron and 3com 3c509 models. you will have the least
compatibility problems with those two NICs and they even work in os/2 most
MCA T/R NICs will have a 16/4 sticker on them which is a dead giveaway for
token ring.
DB Young       ->  MCA and OS/2 user and enthusiast
hurry, hurry, step right up!  see the computers you used as a kid!
http://members.aol.com/suprdave/classiccmp/museum.htm