Sorry to resurrect this older aspect of the thread, but since the image has come up again... Yes, it is Tamura. I spoke with Rod Kobayashi's family including someone who trained a lot with Tohei back in Japan at that time and they said that yes, it looked a lot like Kobayashi but it was in fact another student of Tohei's -- Tamura (who was a good friend of Kobayashi as well as an aside). They also talked about dusting off and working on some of the more varied ki tests they used to do "back in the day". So I'm hoping to see more sometime soon.
Just fwiw. Now back to your regularly scheduled discussion. All in the interest of historic accuracy and credit where credit is due.
It is Tamura.