This is a 22mm Nagler Type 4. It is in excellent condition,
with a few light set-screw marks on the barrel. It comes with box and
original endcaps. Great eyepiece.
Yours for $385, which includes shipping and insurance within CONUS; Pay with cashiers check or money order (or by
PayPal, add 3%).
I'm selling it in order to move to slightly more magnification with a 20mm EP so that there is a better spread between it and my low power favorite, a 35mm panoptic.