Victorian RAS Eyepieces c1875 Brass. A dozen rare RAS Astronomical Eyepieces calibrated to a 5 feet focal length OG. Can be used with any refracting telescope.
Excellent condition optically and mechanically. An RAS Eyepiece fitting is 1.25-inch X 16TPI WHITWORTH.It was standard for Astronomical Eyepieces from 1847 thru' 1977. The item "Victorian RAS Eyepieces c1875 Brass" is in sale since Friday, May 31, 2019. This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "wallyj360-7" and is located in PRENTON, MERSEYSIDE. This item can be shipped worldwide.