[NHCOLL-L:431] Archival stamp pad inks?

[Kathie Hodge]

We need to purchase new archival stamp pad inks for use on paper 
specimen labels.  Can anyone point me toward either a good ink (balck 
and red), or a report on the (very long term) archival qualities of a 
range of inks?

thanks,
Kathie Hodge
Director, Cornell Plant Pathology Herbarium
334 Plant Science Bldg.
Cornell University
Ithaca, NY 14853

607-255-5356
kh11 at cornell.edu