I have a 25mm Kellner eyepiece. I don't know who made it. It came with an old Cave telescope I used about 15 years ago. It was made in Japan. The eyepiece is in very good shape, and it comes in its original box (the box has 48X written on it.) This would be a good eyepiece for someone who does not have a large budget, or it might be of value to someone putting together a "classic" telescope package.
I'll take $12 and ship first class CONUS.
Pay pal prefered.
Thanks for looking.