Having purchased new eyepieces for the Binotron 27 I no longer expect to need this superlative eyepiece.
This eyepiece oozes quality and provides 84 degrees of perfection. These come up on IIS only very rarely indeed and in fact the last one was also from me as I had two for use in the binos but found them a little too heavy and preferred the D14s for binoviewing.
Buying one new one will set you back around $1250 at today's rate plus shipping on top from Germany.
Comes with the original leather case and the original box (not shown in the photo).