You snooze, you lose...
http://cgi.ebay.com/LOT-42-VINTAGE-KEYBOARDS-IBM-HP-APPLE-KEYTRONIC-/310244055182?pt=PCA_Mice_Trackballs&hash=item483bfc988eShow Image(http://i.ebayimg.com/16/!Bzloszg!Wk~$(KGrHqYOKm8Ew9Bs7C7-BMWtrJ1Dkw~~_3.JPG)
'twas me that snagged it.
Doh, you're right it's not an M2, it's a rubber dome. It's just below the IBM aircraft carrier in that last pic.
As far as I know, all the beige Unicomp M5-2s are rubber dome keyboards.Mine isn't. (buckling spring AND USB)
As far as I know, all the beige Unicomp M5-2s are rubber dome keyboards.
This one is indeed a buckling spring (model 1398156) in terriffic shape (sorry TF).