Ronchi Ruling 300 Lpi, And 2 Difraction Grates 1000 Lpi & 600 Lpmm Gratings

US $4364

  • Hampshire, Illinois, United States
  • Jan 30th
Found these Gratings when cleaning out my old desk and I am selling these as a package.  You are bidding on all three. Picture No. 1 is labeled as a Ronchi Ruling 300 LPI.  It is approximately  27mm X 27mm, 2mm thick glass.  I looks clean with no chips or scratches. Pictures 2, 3, and 4 Show a 600 LPmm grating in a plastic frame.  The frame is approximately 39mm X 50mm X 18mm, the grate is 23mm X 23 Grating.  It has its original Sargent Welch Scientific box.  No chips or scratches. Picture No. 5 Show a 1000 LPI metalized glass grating that is approximately 2 inches X 2 inches and 1mm thick.  Minor chip at a corner and some light scratches.  It has its original plastic protective sleeve and outer envelope from American Science Center. Flat rate expedited USPS shipping to the lower 48 states is $8.00 If these are not as stated return for a refund. Again, the winning bidder gets all three
Condition:
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. ...
Country/Region of Manufacture United States

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