This is on ebay.co.uk right now - Item number: 350043964384 -
http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=350043964384
Seems to be some kind of press release or brief news article on the prototype Humber truck for the USA, dated April 1951 - also includes a photo of what looks to be an FV1604 radio truck with the body chopped, sitting in a scrapyard in the 1960s or 1970s. The item is in USA but they will ship anywhere -
The picture below has most of the info anyway, but I would love to know where the photo was taken and when.
I was tempted, but I reckon I might be able to buy a missing piece for my old truck for the same price...