A leather case containing a collection of specimen natural

A leather case containing a collection of specimen natural, synthetic and simulant gem stones and untested pearls. Gemmological instruments, including a cased leveridge gauge with spread gauge and estimated weights calculstor, which includes tables for pearl weight estimation. A 20x loupe and a 10x loupe, a Moe gauge and various specimens and instruments connected with diamond-cutting etc. With a collection of demonstration gemmological slides.