SPECTROSCOPE
Prism spectroscope with graduated wavelength scale Mod. 1504
€275.00
SPECTROSCOPE
Pocket-sized prism spectroscope Mod. 1501
€130.00
HANNEMAN FILTER SET - 4pcs
Hanneman Filter Set (4pcs): 1x Filter for Jade, 1x Filter for Emerald, 1x for Ruby and 1x Filter for Tanzanite
€50.00