Free in Washington DC area, local pickup only: A Mountain Computer
mark-sense card reader. Has a DB-25 on the back and a bunch of dipswitches.
The DB-25 is RS-232. Model 1100A.
Has a small hopper, rubber roller feed etc. Maybe it could be refurbed
into a punch card reader. No idea if it works or not.
E-mail me at "shoppa at trailing-edge.com" if interested.
Tim.