Below are photos from the past week and one-half, building a dozen rocking chairs with a friend of mine for the Bighorn River Lodge in Montana. The lumber is from a centenarian barn destroyed by a tornado last year.
Just one has the back for photography, they stack much better for shipping w/o.
dovetailed lower cross brace
mass-production
etching the zinc from the hardware
finishing
The School of the Transfer of Energy 
Awesome. My grandparents recently had their old barn taken down by some Amish from down south. If I had thought centenarian lumber could be used like this I would have staked a claim to the remains!
Wow! What an amazing army of handmade rockers! Excellent job, as always.