During the late sixties and early seventies, a series of small fiberglass trailers stormed the RV market. The first of these in Canada, and one which has enduring popularity among lovers of ultralight and vintage trailers, was Ray Olecko's Boler, the "egg on wheels", created in Winnipeg, Manitoba in 1967.
Boler Begins, Ray Olecko's Septic Tank
Winnipeg inventor and Boler creator Ray Olecko got his start in the fiberglass industry by manufacturing his own patented light-weight septic tank. Only a year or so later, he applied what he had learned to design and prototype the Boler. Any similarity between the shape of the two projects is strictly a matter of efficient design: the rounded cylinder represents a good combination of strength and interior volume.