I have an original type 1 mm Nagler (before eyecups were added) that I replaced with a type 6 with only slight barrel marks and mint optics. This is one of my favorite eyepieces and considered a must have eyepiece. I would like to trade for your old Paracorr or your neglected 2" OIII filter +/- cash. I also have a big Barlow with Panoptic interface LNIB that I will trade towards one of these items. Thanks for looking.