D. Chappell.
145 West Melbourne Rd.
Geelong West.
Location.
https://www.google.com/maps/place/145+M ... 44.3530847
The caravans were built by D Chappell who had a caravan hire business.
It is unsure if he built any of the vans to sell or if they were only used as hire vans.
This ad is taken from a 1948 magazine.