PN# 1710  / 1632   

I do not know much about spectrometers or parts.  But I know these are hard to find.  It came from working environment and if it does not work for you I will refund.

6 SPEX parts in this lot (for the price of 1!!):

- One slitter. Dial on slitter goes 1- to 200    No tags or markings of the slits (dial is stamped SPEX).   

- The other part is Scanning Spectrometer (pn- 1710)

- Other part is SPEX Plate holder

- 3 Apertures/ lenses holders (??)   (one is stamped 1632)