This was posted as a random photo on a non-woodworking forum I belong to. I tried a Google search but came up with zilch.
The more I look at that the more impossible it seems.
I have seen only one log cabin with no pith in the logs. It was dated 1766 and I think the whole cabin was built from one tree. The logs were 12-16 inches thick in the lower sections and 24-30 inches tall. From the rings it looked like each log was split from a quarter of the trunk. As the walls went up the logs decreased in size just as you would expect in a tree. The cabin was 20 feet square and one full story with a half story loft. All very well hewn yellow poplar with locust pegs in the window and door openings.A pith in every log. LOL
You should look up the history and jointer in the Japanese guilds. Different joints for peasant, merchant, civil and palace. Makes that beautiful log work above look like Lincoln Logs. Each guild had their prescribed joints, not to be used elsewhere. Standard sizes dating back to 6th century. Some could make your head hurt.
The Art of Japanese Joinery, Kiyosi Seiki, s a good basic primer