Philipps AG in Frankfurt launched the DUCARTIST reproducing system in 1923. The DUCARTIST is the DUCA based on an 88-note standard scale. Unlike Welte, Philipps did not change the system’s encoding, but simply produced the DUCA perforations on paper of the 88-note standard width, leaving a blank space on the right and left. The DUCARTIST therefore has the same scale as the DUCA. The DUCARTIST has a double scale, i.e. it can play DUCARTIST rolls – and 88-note standard rolls.
To switch between the roll types, the tracker bar has to be rotated.