S1E1X8T1O1D2E1C3I1M3O1S1
24 points
SEXTODECIMOS is validvalid
SEXTODECIMO, [n]
SEXTODECIMO, a book size 5 5/8 in. x 4 3/8 in. (abbreviated as 16mo.), also SIXTEENMO [n]
SEXTODECIMO, [n]
SEXTODECIMO, a book size 5 5/8 in. x 4 3/8 in. (abbreviated as 16mo.), also SIXTEENMO [n]