According to a book i have (The Dodge Story) there were 236 Airflow trucks built between Dec 1934 and Feb 1940 not all were tankers some were beer trucks plus other uses.

Here is a photo of my tanker body.

Here is a Dodge Airflow tanker truck that a friend of mine made using cast iron. He made the full length versions using the Texaco and Richfield logos. The one pictured here has been dissected to use in the "Safari set" toys. You can see the front half in the lower right side of the photo.

Try this.