Amateur Yacht Research Society (AYRS) Publication No. 75: Deepwater Seamanship, January 1971. This scarce 92-page booklet, with thin card covers, measuring approximately 14.4 x 22.2 x 0.6cm, is mostly devoted to the 1970 Round Britain Sailing Race, with descriptions of the participating yachts, together with a few other items. Also included is a printed circular notice to AYRS members, dated May 1971. There is some age wear, marking and discoloration to the cover including slight bumping and creasing to the edges and corners, together with wear and creasing to the spine; the page edges are slightly yellowed with slight indentations, and the edges of the last two pages are not fully cut, whilst the circular notice is folded and creased.