Interior Staircase Handrailing Prototype Sideview of the prototype for a staircase handrailing. Handrailing made out of brass with the rest made out of steel, held together with brass rivets. Frontal view of the prototype A detail for a brass roundbar that would run at knee level to fill in the gap between the handrailing and the ground. Slide 1 Slide 1 (current slide) Slide 2 Slide 2 (current slide) Slide 3 Slide 3 (current slide)