On the plus side, a cheapo telescope is virtually certain to be a "terrestrial" type, which'll show you things the right way up. "Astronomical" telescopes (including the Astroscan) normally show things upside down, because that's the simplest way to build the optics; it minimises loss of...
The 28mm, or 1” to 1 ¼” where 1 1/8” seems to be most common, war surplus eyepiece from these gun sight telescope were also sold by Edmunds, as well as other supplies, such as Edscorp (see the first photo) and American Science Center between 1956 and 1980 with a price rangin...
The 28mm, or 1” to 1 ¼” where 1 1/8” seems to be most common, war surplus eyepiece from these gun sight telescope were also sold by Edmunds, as well as other supplies, such as Edscorp (see the first photo) and American Science Center between 1956 and 1980 with a price rangin...