I have only had this eyepiece for a few months, but am now looking for something wider. There is a slight blemish on the edge of one of the elements, but that is the way it came, and it doesn't affect the performance. The eyepiece cost $39.50 and the rubber eyeguard was $4.00 plus shipping. There are no caps or case. I will sell both for $40 and include (US) shipping by USPS.
Or, I will trade the eyepiece straight up for either the new Surplus Shed 47mm Erfle or the 53mm Plossl. (I would keep the eyeguard in that case, since I think it fits both of those.)
Thanks for looking,