This one was called "3 Beach" by it's Japanese seller. You won't get many search hits online unless you look for Threekor, however. I found plenty of Japanese auctions for the 60mm as well as 40mm. This 60mm is called the 260, due to the focal length. Approximately f/4.3.
I posted my impressions on a few sky objects in the Finds thread, a quick summation is that I'm pleased and amazed that there isn't more color. It's not obtrusive untill high powers are reached, then I noticed a red halo around bright features bordering on dark. It excelled at deep-sky, especially once I stuck the 20mm Erfle on there.
These were sold in kits much like the Tasco 9VR et al, and various other 60x300mm spotters. My example as purchased is just the OTA, tube clamp ring, finder, thread-on Porro erector, H20mm eyepiece, dustcaps.
The good news is the objective is pristine, the focuser tight and smooth, cosmetics good to very good. It accepts a Vixen 1.25" visual back. Interestingly, the finder isn't just a sight tube, as I had thought I read on one of the Japanese websites, but a tiny Galilean-type refractor yielding about 2X and an erect image, in a tiny field of perhaps 2 degrees. Good on bright objects and terrestrially in daylight only.