The German Consul in W.A., imported 2 Klemm monoplanes in late 1929 and early 1930. The Consul, a Mr H.C. Ittershagen, ran a company called the Aerial Commerce Co., and tried to sell the Klemm aircraft with barnstorming sessions, and much advertising and visitations by the aircraft, and giving joyrides, in many rural regions of W.A.
H.C. Ittershagen was also the local dealer for German Lanz tractors, and he was intent on selling the Klemm aircraft to wealthy farmers.
However, it was the height of the Great Depression, and most peoples thoughts were on survival, not purchasing aeroplanes. The farming community was under stress as commodity prices had collapsed below the cost of production. As a result, sales of the Klemm aircraft failed to eventuate, and I believe the company was wound up before the Great Depression was over (1934).
The two seater Klemm apparently survived until the early 1950's, and was apparently flown unregistered and secretly during the War by an unlicenced pilot.
https://encore.slwa.wa.gov.au/iii/encore/record/C__Rb1920207?lang=eng&ivts=x9%2FQXzsNh%2Bv1jvs6BeSDUg%3D%3D&casts=xs0LRgWFEu0M%2B8o995kfRA%3D%3D
https://trove.nla.gov.au/newspaper/article/33345002
https://trove.nla.gov.au/newspaper/article/244479910?searchTerm="Aerial Commerce Co"
https://trove.nla.gov.au/newspaper/article/33346529
https://trove.nla.gov.au/newspaper/article/32309256
https://trove.nla.gov.au/newspaper/article/264201167
https://www.airhistory.net/photo/564927/VH-ULU