Back in the 1970's a "vintage enthusiast" friend of the family found this while visiting one of the "old school type scrap yards" that use to be about and that you don't see so much of nowadays. Where you could visit have a wander round and if you fancied something make an offer and agree a price with the yard owner. He decided that it was too good to be in a scrapyard and lost to scrap metal and so purchased it for a small fee. He then thought that my parents may like it being as they were both interested in the "WW2 Home Front" and it's been in the garage ever since.
We thought that it may date to the 1940's and could be military but there appears to be no markings on it apart from the manufacturer's label.
Looking on eBayUS there appears to be similar, but slightly different, items for sale by the same maker, AER.
I wondered what the consensus is, if it is a vintage US military item or a vintage commercial use item made in the US? It has always been a bit of a mystery ever since it was found in the 1970's.
Many thanks for any information.