Our Boler was built in 1978 in Ontario, Canada. We still have the specs from the original camper.
The Owner’s Manual is very useful when looking for information about specifications and camper systems.
If you want to read on the history of the iconic Boler trailer, the website Bolertrailerhistory.ca is an amazing source of information.
If you are interested in learning about a vintage travel trailer’s design and history, The Illustrated Field Guide to Vintage Trailers is an excellent reference book. It includes detailed camper illustrations along with a short description of each style and manufacturers.