56.919 = Gold Test Kit with 10K, 14K & 18K Acids & Test Stone
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Gold Testing Kit - Basic-KIT-1000
GTS Acid Test Kit Gold 10K 14K 18K 22K Silver Platinum Testing Stone Jewelers Tool
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Gold Test Kit 10K - 14K - 18K Solutions - Test Stone & Instructions – Make Your Own Gold Bars.com
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JSP Gold Silver Jewelry Testing Acid 10K 14K 18K 22K 24K Test Kit Tester Stone, Women's, Size: Small
This set includes six (6) bottles of JSP acid testing solutionS, two (2) PuriTEST test stones, and DIRECTIONS Each bottle is half-ounce (1/2 oz; 0.5
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Gold & Silver Test Acid Kit for Jewelry 10K 14K 18K 22K & Silver JSP Testing Set