Some people like to collect advertising material on the good old J 10 cwt van, only much later was it called the "J type" maybe after the fact the chassis number starts with the letter J. There is plenty of J related items around but some are rarer than others.
For example there is one for sale on good old Flea-bay at the moment, well over priced, true its one of the first but not the rarest.
Also watch out, some are undated and some have at least two versions, if it has a number on it prefixed with the letter H, its for HOME issue and if it is prefixed with E, its for export use.
You can also collect Morris Commercial newspaper adverts or maybe adverts from body builders.
Here are a few of the many examples to collect.
Currently for sale on ebay USA at £19 is the above export booklet.
http://www.ebay.co.uk/itm/351305918881?ru=http%3A%2F%2Fwww.ebay.co.uk%2Fsch%2Fi.html%3F_from%3DR40%26ghostText%3D%26_sacat%3D0%26_nkw%3D351305918881%26_rdc%3D1
