JSP

Genuine , natural obsidian, smooth for the best quality test results

Does not change the color of your coin. Removes oxidation contamination & tarnish. Designed to be used on mint state or proof coins Efficient ...

Tones and darkens copper rapidly Does not damage coins Safe and easy to use Invaluable to the numismatist JSP® COIN COPPER COIN DULLER- Great  fo...

If test acid touches skin or other objects, rub test acid neutralizer solution on the spill area to stop further damage. Also use test acid neutral...

One Bottle of all acids, 10K, 14K, 18K, 22K, Silver, Platinum, and a testing stone.

Gold test acids, when used with test needles and test stones, determine the gold karat value of articles being tested. 10kt, 14kt, 18kt and 22k tes...

Gold test acids, when used with test needles and test stones, determine the gold karat value of articles being tested. 10kt, 14kt, 18kt and 22k tes...

Gold test acids, when used with test needles and test stones, determine the gold karat value of articles being tested. 10kt, 14kt, 18kt and 22k tes...

Gold test acids, when used with test needles and test stones, determine the gold karat value of articles being tested. 10kt, 14kt, 18kt and 22k tes...

Platinum test acid is used to determine the platinum purity of articles being tested. Scratch or rub the metal onto the testing stone and apply a d...

Silver Test Want to know the metal content of your silver bullion and coins? It’s easy using silver test acids from Wizard. Unfortunately, fake sil...