The BF Kitching & Co Tuning Fork C256 is a silver aluminum tuning fork made by BF Kitching & Co in the United States. It is a model known as the BF Kitching & Co 500, designed for tuning pianos and other musical instruments. With its high-quality construction and precision calibration, this tuning fork is a reliable tool for musicians and instrument technicians looking to achieve perfect pitch and optimal sound quality.