Turns out that the guy where I got my first 60s had more... same batch from the looks of it, so I picked it up.
It is a classic biaozhun shuiping shape F1 from the 60s in hongni clay.
Volume: 60ml or 3-cup (Taiwan measurement)
Height: about 55 mm
Length: (spout>handle) about 90 mm
Thin walled and with the excellent and lovely, creamy red clay the 60s are famous for. It had the original wax coating that was sometimes used back then, so this means it is in pristine, unused factory condition. I boiled it off nonetheless to check the state of the clay. Same as the previous one, it turns dark red fast when filled with hot water. A good candidate for high mountain oolong, Yancha, or any other tea that is so expensive that you prefer to enjoy it in small quantities. Thin like that and raised over a period of time, it can also be a good substitute for Zhuni clay.
Sought after and not cheap, so due diligence is in order, please do yours in regards to authenticity. To the best of my knowledge this is a genuine item. In addition to my own research, I did confirm with some people who know more than me.
Adoption fee is 600$ +30$ EMS shipping
Payment via Paypal
Re: FS: 60s F1 Shuiping, 60ml
Wow, maybe I should hit the shops around here and look for some to sell 
Re: FS: 60s F1 Shuiping, 60ml
If the situation is anything like Taiwan, it won't be easy! The 60s pots are highly sought after in Asia as well. 70s you got a bit more of a chance, yet still rare. 80-90s many many many
Re: FS: 60s F1 Shuiping, 60ml
See also:
viewtopic.php?f=33&t=23982 Woodfired/porcelain teapot
viewtopic.php?f=33&t=23991 Julunzhu teapot