Noun
(paper) Abbreviation of duodecimo, a page size (5"-5.5" x 7.125"-7.5")
(printing) A book size using duodecimo-sized pages.
Source: en.wiktionary.orgIn our mind this is a major shift in view versus 12mo ago, as our sense when Elliott initially filed was that long-term investors wanted to give management the benefit of the doubt and allow them to pursue self-help. Source: Internet
Later paper wrappers, 12mo. Source: Internet
Original photographic Yellow paper wrappers, 12mo, 47 pages. Source: Internet