Vintage Meade #911 light pollution filter for SCT’s is in excellent, lightly used condition. There are some marks on the barrel and housing and the yellow-orange letters are rubbed, as shown in the supplied images. The coatings and optical surfaces are in excellent condition without fungus, scratches or damage to the coatings. A superb screw on light pollution filter for SCT telescopes. Made in Japan. The final image shows the item listed in an Meade catalogue from 1893 (not included). Any questions, please feel free to ask!
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