Pentax "straight-through" image erecting adaptor.
Used in Pentax scopes for terrestrial viewing.
Good match to image-erect finder in other ad, to use Pentax astro-scopes for terrestrial viewing.
Fits 1.5" standard Pentax adaptor group.
Comes with screw-in 0.965" "slip-in" metal adaptor.
Looks brand new, except for some minor marring on 0.965" adaptor.
With original Pentax caps (1.5" and 0.965")
Usable directly with Pentax scopes and 0.965' eyepieces, for high-quality direct-view terrestrial viewing. Others would need to have custom adaptors for 2" visual backs and 1.25" eyepieces.
Not sure how much to ask. Thinking around $75. Open to offers.