Re: how to tell if they are 135mm hubs....
take the spring out of the quick release, then push the skewer all the way into the hub axle. With the nut still removed from the end of the skewer mark that end of the skewer where it meets the axle using a permanent marker or a bit if sticky tape. Pull the skewer out, then measure the distance in between the tape and the inside of the lever end of the skewer. Hey presto !
Re: how to tell if micro drive....probably easiest just to read the number of teeth off the smallest sprocket in the cassette and quote that. I assume non-microdrive would have smallest sprocket of 13 teeth. Think 12 teeth or smaller is likely microdrive, though perhaps someone can correct this if I'm wrong !
p.s. my guess is these are off an early 90's lava dome. Hubs possibly suntour xcd or xc ltd or xc-expert ??? More info on suntour here : http://www.mombat.org/Suntour.htm
p.p.s I would expect these are non-microdrive as I think microdrive was only available on higher end groupsets.