Hi I am the inventor from Ireland of a new gold and silver tester, There are 3 prototype models featured in the below short video.
Gold & Silver Reviews Testing
JSP/PuriTEST Gold Silver Acid Tester 14k Testing Stone
Gold & Silver Reviews Testing
GTE Gold Silver Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Platinum Palladium Test Precious Metals 999 925 Scrap
Gold & Silver Reviews Testing
precious metal tester products for sale
GTE Gold Silver Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Platinum Palladium Test Precious Metals 999 925 Scrap
Sentiment Speaks: Gold And Silver Have More Work To Do Before
precious metal tester products for sale
JSP & GTE Gold Silver Jewelry Tester Appraisal Kit 10K 14K 18K 22K