TeleVue 24mm Wide Field, later style. 1.25" barrel, ribbed side with fold down eyecup. Comes with only lower cap ( not original ) and very protective bolt enclosure (er, that is, peanut butter ). No marks, no scratches. An excellent alternative to the larger, heavier, and more expensive Panoptics.
Yours for $160 shipped within CONUS. Please add $5 for payments via PayPal.