It is both conspicuous and overlooked. Because people might rest their haunches on it, you have to build it strong. Yet it has to curve. So how do you make something curve and be strong? Dad?
Well what you’ve got to do is re-saw and plane three rough planks of mahogany, then bend them on a jig, slowly, over several months so they don’t snap.
Then you layer those curved planks, staggered with six tail extensions, all re-sawn and planed to identical thickness (according to your caliper-micrometer). 
Then you glue everything together over several days with more clamps and jigs. And once it's dry and you've shaped and sanded it all down, you place the entire U-shaped arc into a cylinder with a irregular and variable pivot and hope the whole thing fits.
And it did. Perfectly. Cause we’re really good.
And it did. Perfectly. Cause we’re really good.
