Sounds like you may have enamels from Thompson Enamels? They used to
(maybe still do) sell enamels in round carboard containers. To use
the enamels you need to have a small enameling kiln or oven, a PMC
kiln works also. It would be to your benefit to get a book on
enameling and read about the techiniques, as it is not difficult, but
it is a process.
With old enamels such as the ones you have acquired, it is important
to wash the enamels or screen them and test them on fine silver or
copper to see if they are still good. Enamels can go bad and break
down over time, but that is if they have been exposed to moisture. If
kept dry, they are usually good for many years, but beware, some
colors go bad before others.
If you would like a catalog with supplies and materials for
enameling, I recommend calling Thompson Enamel at 859.291.3800 or
e-mailing them at: info@ThompsonEnamel.com They are located in
Bellevue, KY and charge $4 for a catalog.
Another resource would be Enamelwork Supply located in Seattle, WA
206.525.9271. They sell many enamels and some supplies.
There are many types of enameling, ie. cloisonne and plique-a-jour,
so as I stated before, I would recommend getting a book on the topic.
If you have further questions, I would be happy to help. I just
learned cloisonne enameling myself and love it! Regards,
Sara D. Commers
C&L Gems LLC