The sides were cut to shape with a scroll saw , with one of the sides needing a hole cut into it so the USB ports can be accessed. After cutting, the wood and brass were sanded and filed.
For the front and back supports a piece of wood was hand planed with a curve to match the shape of the side pieces. A sensible person would have bought, borrowed, or stolen a router for this one! After that all the wood was stained and waxed.