5.25" disks

I picked up an auction lot today and it contained, among other things, some 5.25" disks that are hand labelled as "1.2MB Test Media". I'm wondering if they are calibration disks for 5.25" drives. Realizing they are probably so RARE that to L@@K at them should cost $20 :-) Since I've got a couple I'd like to send one to anyone who feels confident they can tell me what they are (Tony?) Another thing this lot had in it was the 1996 MSDN developers network subscription CD binder. This basically has like all the "big" software microsoft made including copies of Win95, WinNT 3.5 and WinNT 4.0 Beta. Plus various SDKs, international versions and docs. It occurred to me that to a developer this "trash" is going to be gold to a collector in 20 years who is trying to demonstrate or renovate a "pre-millenium personal computer." So it seems to be out there and it is fairly low volume (less than 1 cubic foot) and can be had inexpensively. May I suggest we do future collectors a favor (as those who saved OS/8 did for me) and take some of this "junk" and store it somewhere safe for future generations... --Chuck