18 m2 regel boat	1957-01-18	Priles and Lines, final drawings
18 m2 regel boat	1957-01-12	Profiles and Lines, annotated
18 m2 regel boat	1957-03-10	Boom
18 m2 regel boat	1957-03-01	Profiles and Lones, earlier version
18 m2 regel boat	1957-01-01	Water lines and Frames