web site where there was a much more sophisticated version of my rather crude doweled joint…the tiny pic has been lifted from that site.
I thought I'd have a go and you can see that I've used elm this time and all the dimensions, including the 'round over' are about right…even the horizontal section is an off-cut from the actual job.
It looks identical to the previous attempt:
…but when it's pulled apart you can see that the shelf locates into a double housing that wraps around the leg. All told, a much better (and possibly stronger) solution.