This is the eyepiece you may have owned as a kid! Mentioned and illustrated very often in Sam Brown's book "All About Telescopes", it was made by Edmund from very high quality, fully coated, new war surplus lenses. - This eyepiece is in very good condition, and is standard 1.25". - I guess if you are interested, you already know just what it is. Price is only $40 shipped, to any of the 50 states; PayPal, or Money Order. - Thanks for looking, and have a great day!