I just learned from JTB that there is a transportation museum being built in Invercargill New Zealand! Formerly "Harold's shed" aka NZ Road Transport Hall of Fame housed about 40 trucks n busses

one of 3 known Dodge Airflow Fuel Tankers

images all from https://www.facebook.com/truckcollection/photos_stream

Over 300 trucks, 150 petrol bowsers, significant Henry Ford Letter Car and V8 collection and much more motoring memorabilia

keep up with news and progress at https://www.facebook.com/truckcollection/timeline

one of the best looking commecial truck designs

Found on https://www.facebook.com/groups/353785941367129/

The New Zealand museum of transportation says that there are only 3 1940 Dodge Airflow fuel tanks left, so, you're probably looking at theirs. For another view, see http://justacarguy.blogspot.com/2015/05/i-just-learned-from-jtb-that-there-is.html