Jewelry Tools

Asco Swiss Made loupe. Type H, 10x. 25mm diameter. Screw in bezel for easy lens cleaning.

Asco Swiss Made loupe. Type H, 7x. 25mm diameter. Screw in bezel for easy lens cleaning.

Asco Swiss Made loupe. Type H, 4x. 25mm diameter. Screw in bezel for easy lens cleaning.

Asco Swiss Made loupe. Type H, 3.5x. 25mm diameter. Screw in bezel for easy lens cleaning.

Asco Swiss Made loupe. Type H, 3x. 25mm diameter. Screw in bezel for easy lens cleaning.

Asco Swiss Made loupe. Type H, 2.5x. 25mm diameter. Screw in bezel for easy lens cleaning.

Natural testing stones are used with solutions and test needles to determine karat values of precious metals.

Economical black glass stone used with solutions and test needles to determine karat values.

Measures: 2″ x 1-1/2″ x 3/16″

Stone used with solutions and test needles to determine karat values.

Replacement box for holding the metal testing kit.

Needles and item to be tested are rubbed on test stones and treated with acid to determine match.

Wood case contains three acid bottles with ground glass stoppers and applicators, test stone, set of gold testing needles.