No nails Australian wood shelter?

I saw part of a show about how to build a wooden shelter using no nails from logs.  It didn't look like a log cabin.  The sides were split logs held in an upright brace also made of logs.  It was simple to make but very hard work as much of it was done with hand tools.  But I think modern tools could be used now. ( This was sometime in the 1960's.) Anyone know anything about it?  It would be a good thing for off-girders.