Hi Tom,  I saw your posting in 081120 MMDigest that you are looking
for large piano roll boxes.  QRS still does stock these boxes as new
items.  Since I am unfamiliar with "O" rolls, I do not know if there
is a particular dimension you need, but if you are unable to obtain
these boxes through this posting, you may wish to telephone us at
1-800-247-6557.  The large boxes (with labels) are item number 46007,
and cost $19.95 for the ten-pack.  Of course, shipping will be extra.

Good luck!
Mike Walter