This page from the DUCA music catalog shows another curious detail of the Philipps roll recordings. From July 10, 1911, the recordings of dance music were listed separately. Since Philipps had by then reached no. 783 for the classical repertoire, a decision had to be made as to which block of numbers to start with for dance music. At first no. 3000 was chosen – presumably on the assumption that this would leave enough reserve. As early as October 31, 1911, this was raised to the 5000 numbers – and corrected for the first 3000 numbers. In retrospect, 3000 would have been enough – but no one could have foreseen this at the time.