The piccolo heckelphone is a very rare woodwind instrument invented in 1904 by the firm of Wilhelm Heckel in Wiesbaden-Biebrich, Germany. A variant of the heckelphone, the piccolo heckelphone was intended to add power to the very highest woodwind register of the late Romantic orchestra, providing a full and rich oboe-like sound well into the sopranino range. A transposing instrument pitched in F, a perfect fourth above the oboe, its range as described in contemporary fingering charts is from written B3 to G♯6, though it can reach tones as much as a third above this.