Phase box rivets

We recently ordered some plastic rivets for making artifact boxes
from:

    Instachange Displays Limited
    224 Earl Stewart Drive
    Aurora, Ontario
    Canada L4G 6S5
    905-727-4877
    Fax: 905-727-2686

I don't know what the composition of the plastic is--I did the
Beilstein test for chlorides and it was negative.  Cost for 1000 1/4
inch rivets (Adjust-A-loks) was $126 CDN; order no. 2406-A.

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                  Conservation DistList Instance 10:57
                 Distributed: Friday, December 13, 1996
                       Message Id: cdl-10-57-003
                                  ***