Break down schematic of vintage trailer

I saw this set of brochure adds for sale on ebay today, and so I took a screen shot. I think this is helpful for anyone who is a newbie and doesn't understand how one of these trailers is put together. Maybe it can be set as a sticky, or put under the "info for new owners" part. Vikx?? I included a second one thats closer up, with the writing easy to read.