Detailed privacy of the user registry: Here
Various types of auctions
Advertising & sponsors
Real Estate & Equity
Engine & Classic
Art & Antiques
Juke Box Original
Spectroscope manual pentaprismas and grid with the entrance of light adjustable, with scale built in.
Analyzes the wavelengths from 400 to 700 nm
It is a base for attaching a spectroscope Kruss, or similar.
Carries a rotating disc lined in black fabric to place the stones to study
Spectroscope for gemstone identification through the analysis of the light spectrum