Downloadable electronic publications in the nature of newsletters, books, and magazines in the fields of precious metals, testing of precious metals and precious and semi-precious stones, non-precious metals, plastics, resin, glass, leather and textiles, assaying and hallmarking; electronic sound and audio-visual recordings featuring information on precious metals, testing of precious metals and precious and semi-precious stones, non-precious metals, plastics, resin, glass, leather and textil...

[ PRE-RECORDED AUDIO AND VIDEO TAPES AND DISCS, COMPACT DISCS, CD-ROMS AND DVD DISCS ALL BEARING MATTER RELATED TO THE TESTING, ASSAYING, CERTIFYING, ACCREDITATION AND HALLMARKING OF PRODUCTS MADE OF METAL OR METAL ALLOYS ]