The following are a series of photos of the construction of what I have chosen to call a “walnut long table”, featuring a large center cut black walnut slab about 2″ thick from Fall River, KS. The legs are also black walnut from Boaz, KS.
Butterfly sockets along the seasoning check.
Removing material for a large sliding dovetail and dado for the cross brace.
Sawing the slope inside of the dovetail-dado (dovetail bit in router not deep enough).
Legs.
Fitting the legs. Lower right is a view of the end of the sliding-dovetail on the brace.
Settled on steel bolts over mating the legs to the brace with another sliding dovetail.
View from the “South” end of the table.
From the “North”.
The School of the Transfer of Energy 
Beautiful, as always:) Hi. We miss you all. Hope to catch up very soon. Maybe tomorrow?
whats wood of the butterfly key?
I used hard maple for the light butterflies and rosewood for the dark ones.