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Various types of auctions
Advertising & sponsors
Art & Antiques
Engine & Classic
Real Estate & Equity
Historical & Sold
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