15-cwt GS trailer saved from scrapyard

[Grant Bowker]

My thanks to all who have provided photos and leads.
I'm still short on information about the upper, movable part of the sides of the earlier 15cwt trailers. All help will be appreciated.
The photos of the later 20cwt bodies will be particularly useful if I can persuade Bob that he needs to manufacture a body for his 20cwt frame and more photos of all three bodies (early 15cwt, composite 20cwt and steel 20cwt) will always be useful to understand their construction.