I asked information about this last May, this is the information I received
from David Inouye:
 
 
Opalith Plattchen (plastic bee tags in 5 colors) are available from the
manufacturer:
Chr. Graze KG
Fabrik fur Bienenzuchtgerate
7056 Weinstadt-Endersbach
Bei Stuttgart
Germany
telephone 0 71 51 6 11 47; fax 7151-609239
 
Price in fall 1991 was DM 22.50 for a kit with 500 tags, plus DM 5 for
airmail shipping.
Information from Kearns and Inouye. 1993. Techniques for Pollination
Biologists.
 
Hope that this helps.
John
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John E. Burns <[log in to unmask]>
Graduate Student, Dept. Biological Sciences
University of Notre Dame, Notre Dame IN 46556
Phone: (219) 631-4164   FAX: (219) 631-7413   Dept. Office: (219) 631-7186
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