Manufacturer GTE. GTE 10K, 14K, 18K, 24K Gold Testing Acid Solutions (0.5 oz. GTE Silver and Platinum Testing Acid Solutions (0.5 oz. 2"x 2" GTE Test Stone with non-slip backing. - GTE Premium Large Wooden Storage Box. ).

Manufacturer GTE. GTE 10K, 14K, 18K, 24K Gold Testing Acid Solutions (0.5 oz. GTE Silver and Platinum Testing Acid Solutions (0.5 oz. 2"x 2" GTE Test Stone with non-slip backing. - GTE Premium Large Wooden Storage Box. ).