Set of 5 Testing Needles for 8, 10, 12, 14 and 18 Karat Gold, Item No. 56.707

Used to determine karat content of gold. Needles and item to be tested are rubbed on test stone and treated with acid to determine match.

Set of 5 Testing Needles for 8, 10, 12, 14 and 18 Karat Gold