German silver is "white" as opposed to brass "Yellow". Both were used-makes no difference. The base can be brass, copper, or steel. The higher end wth the steep dropoff goes toward the rear of the barrel. Some sights have the rear end of the blade vertical and not sloping. I do not know what you mean by "white" sights unless you are referring to the Very Few that were made of bone-not too good for proper sighting.