The chair back on this set is one piece of teak. Not a frame with a carved panel dropped into it - a single board, pierced right through into scrollwork and shaped to a crest, standing over two feet clear of the seat with nothing behind it.
That is an uncomfortable thing to build, because a chair back is structural. It takes the full weight of someone leaning into it, and every opening cut into it removes strength while adding leverage. Do it carelessly and the back cracks across the grain at its narrowest point the first time somebody sits back hard.
Our carvers handle it by designing the openings around the load rather than the other way round. The scrollwork is laid out so that continuous ribs of timber run vertically from the seat rail to the crest, and the piercings sit between those ribs. What looks like free ornament is in fact a frame in disguise - the pattern is where the strength is.
The swan-curve rail sweeping from the crest down to the seat does the same job on the outside. It reads as a flourish; it is actually the member that stops the whole back flexing sideways.
Ornament carrying load is old thinking, and it is the difference between carving applied to furniture and carving that is the furniture.