After a bit of delving around my research and spending some extra time on Trove, I wonder, if in fact Martin's Home Comfort caravans were supplied by H.A. Behrens who is listed separately in the Library. It is hard to imagine a department store setting up a manufacturing facility to produce vans or any of the other items they sold under their own name. And, it seems unlikely Mr Behrens would have allowed another manufacturer in the same city to use the name Home Comfort, unless the addition of the deletion of the 's' made all the difference. He appears to have been quite a business man and was elected to the Committee of the Caravan Club when it was formed.
Unfortunately there are no photos of his products, but the following compilation of newspaper advertisements from 1935 to 1940 offer a few insights.
The first advertisement for Home Comforts found was in December, 1935, and while it didn't carry his name the phone number is the same as later advertisements that do.
In 1937 the advertising shows the vans were exhibited at the Royal Show, might the detail of the year of the above photo be incorrect? The photo shows the middle van to be an 'American design' a style he advertised in February, 1937.
I've been all over the calendar photo trying to find a stand number, but to no avail, the stand to the right is for Castrol. Unfortunately I've not been able to find any newspaper coverage of the exhibit at the Show, but I'll keep at it.
John Martin's advertising has only been found for late 1938 so far, while Behrens has been sporadic over the five years and appears to have ceased in June, 1940.
Has anyone anything further to offer?
George