According to Edith Reiter's 2014 book, this instrument was completed on 16 October 1928 and originally sold to a buyer in an unknown location.
Howe & Hurd (2004) describe heckelphone #4053 as a model 36i, tuned at A=440.
As of 2004, heckelphone #4053 has been reported to belong to the Conservatoire de musique de Montréal in Montréal, Canada.
The history of heckelphone #4053 remains largely unclear.