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Meade roof prism set for eyepiece, telescope experiment
$5.95 
Time Left: 1h 2m
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GOLD 220MM TRUE PARABOLIC MIRROR EX-NASA (25 YEARS)
$700.00 (0 Bids)
Time Left: 2h 48m
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Telescope Secondary Mirror 3.1 inch
$139.00
Time Left: 9h 17m
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VINTAGE PROFESSIONAL STUDIO MICROPHONE ALTEC 689BX MIC
$249.98 (0 Bids)
Time Left: 22h 11m
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CELESTRON 14" Mirror Blank, Cast Formed to F 2 Fine-Annealed Pyrex*
$150.00
$225.00
Time Left: 1d 6h 48m
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Vintage Criterion Telescope Brass Spider Parts & mirror for Newtonian Reflector
$21.50 (3 Bids)
Time Left: 1d 21h 16m
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Vintage Criterion Telescope Focuser , Kellner Eyepiece for Newtonian Reflector
$40.00 (0 Bids)
Time Left: 1d 21h 37m
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SCT Quartz Dielectric Diagonal 2" by High Point
$139.95
Time Left: 1d 22h 5m
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SCT Dielectric Diagonal 2" by High Point
$109.95
Time Left: 1d 22h 5m
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Dielectric Diagonal 2" by High Point
$99.95
Time Left: 1d 22h 5m
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Quartz Dielectric Diagonal 2" by High Point
$129.95
Time Left: 1d 22h 6m
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Meade 5000 2in Enhanced Diagonal Mirror with Adapter
$149.00
Time Left: 1d 23h 57m
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GSO 2" 90 deg Mirror Diagonal for SCT Telescopes
$69.50
Time Left: 2d 4h 2m
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GSO 2" 99% Dielectric Quartz Mirror Diagonal for SCT
$132.00
Time Left: 2d 4h 2m
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Lot of 10 Edmund Scientific 30429 First Surface Mirror C56
$100.00
Time Left: 2d 20h 44m
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16 INCH F 6 CUSTOM NEWTONIAN TELESCOPE MIRROR
$7,500.00 (0 Bids)
Time Left: 2d 21h 2m
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4.25 inch Newtonian Dobsonian Telescope secondary diagonal mirror 1 10 wave
$69.00 (6 Bids)
Time Left: 2d 23h 59m
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NOS NIB Corning PYREX 8" dia x 1 3 8" thick Telescope Mirror Blank USA Glass #4
$81.00 (4 Bids)
Time Left: 3d 4h 54m
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18" ZERODUR BLANK MIRROR PYREX ZYGO TELESCOPE PRECISION OPTICAL
$4,500.00
$5,000.00
Time Left: 3d 5h 12m
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MEADE 45 DEGREE ERECTING PRISM BRAND NEW
$40.00
Time Left: 3d 22h
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8" Pro-Optics;SwartzChild Type Cassegrain--Made in the 60's-Rare-Looking Good AA
$495.00
$550.00
Time Left: 4d 2h 56m
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!!!! New, Never Used, 80 mm 2 Piece Set Primary and Secondary Mirror Set.
$21.00
$23.50
Time Left: 4d 4h 30m
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2.5" Edmund telescope newtonian mirror blem coating
$2.95 (0 Bids)
Time Left: 4d 4h 53m
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Meade roof prism set for eyepiece, telescope experiment
$4.95 (0 Bids)
Time Left: 4d 6h 44m
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Tele Vue 90-Degree Everbrite Mirror Diagonal (1.25")
$75.00
$150.00
Time Left: 4d 19h 46m
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CELESTRON ERECT IMAGE DIAGONAL 1.25" 94112-A
$4.25 (4 Bids)
Time Left: 5d 2h 45m
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CELESTRON ERECT IMAGE DIAGONAL 1.25" 94115-A
$0.99
$25.00
Time Left: 5d 2h 54m
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ROTATING PRISM ASSY FROM A KB-18A AERIAL CAMERA
$33.00 (0 Bids)
Time Left: 5d 15h 53m
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Explore Scientific VFEI0850 Erect Image ViewFinder
$149.95
Time Left: 5d 20h 3m
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Celestron 90° Angle Star Diagonal, 1.25" 94115-A new in box
$30.00
Time Left: 5d 22h 17m
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