Encyclopedia Britannica Eleventh Edition. The 1910 small leather bound 'Handy' edition in 29 volumes (missing vol 6) plus the matching 'New Volumes' (3 A-Z) of World War I & additional information published later. This is the thin paper (India Paper) version with the folding colour maps printed in the same style. Covers worn with losses to spine, however interiors are very clean & straight