The stair's handrail is made from a mast from the client's childhood sailboat; they left the rigging on it. That tool over the barware cabinet is an old timber measurer, which serves as sculptural found object, as does the snowshoe hung in the stairwell.
The latest in under-stair storage: Drawers that hide everything you need to store, like magazines, movies, games and toys.
I like the hidden staircase, the design on the wood floor, and the design of the bookshelves themselves.
The Japanese used kaidan-tansu to avoid paying taxes on extra floors in the house. These chests could be assembled to form a stair and, when the tax man came snooping around, could be disassembled and moved elsewhere.