I have the above eyepiece in great condition for sale. It is silver top, but has no name on it although it look similar with the Celestron ones. I bought one whole set of these (6.7, 10, 17, 20, 25mm) as star party eyepieces. They are great especially with kids around where you don't want them to stick their finger onto your expensive Naglers or pentax (happen to me before on my Nagler 7mm
)Although they are some cheap plossl, do not look down on them. I have compared the 20mm with my Pentax 21XL and besides the FOV and eye relief of the Pentax, I did not see the 20mm Silver top lose out in sharpness or contrast. (BTW, the 25mm silvertop is wonderful....no blackouts, no kidney beans, decent eye relief, great sharpness. Certainly better than the 26mm Meade 4000 that I have). So I am keeping these silver top plossl except the 6.7mm one because I already have a 7mm Celestron Plossl in my eyepiece case.
Come with box and two end caps. Will sell for just $25..self collect at Bukit Merah.
Cheers.