They are 9-track tape write-enable rings. They fit
into a groove
around the hub-hole of 9-track tapes. At one time, these used to
be all over the place. Since the demise of 9-track tapes as a
common media, they seem to have become scarce
Ok... that makes sense, I am sure they ended up in the drawer after the
tapes were used. I don't think I have any tapes left, I think they all
got pitched with the Zebra (I recall them being in a white plastic clip
on case). The rings would have too had I known they were there (yep...
that's right, no one has opened this desk in something like 15 years... I
found a VERY old Half & Half creamer in a drawer... the stuff inside
appears to have turned into some goo like substance... I plan to open it
later to see... the gross nature of it has gotten the better of me)
I think the orange style ones are all claimed but I have 27 of the yellow
ones if you want them.
-chris
<http://www.mythtech.net>