The rocking chair has an ink stamp and paper labels
which say Jacob & Josef Kohn, Actien - Gesells chafr Wien.
Seat frame is formed out of a single piece of wood,
lapped over each other, dowelled and glued at the rear.
It's also assembled using hand cut, square head,
metal bolts which I've never seen before.
It almost looks like it was a "kit" chair
JeffS
Ontario Canada