According to Edith Reiter's 2014 book this instrument was completed in November 1982 and originally sold to a buyer in an unknown location.
Howe & Hurd (2004) describe heckelphone #4982 as a model 36 voll cons.
As of 2004, heckelphone #4982 was reported to be located in Sauerlach, Germany, owned by bassoonist Wolfgang Piesk, who used it in performances of the Bavarian Radio Symphony Orchestra (Symphonieorchester des Bayerischen Rundfunks). Likely around 1994, Piesk acquired the instrument from Winfried Petri of Schliersee, Germany, professor for the history of science at the Ludwig-Maximilians-Universität München, Germany, amateur bassoonist and saxophone player, who was also a noted translator of science fiction literature. Winfried Petri purchased heckelphone #4982 directly from Heckel.