16/-?Prior to decimilisation (1968-1971), UK books were priced
in shillings, or shillings and pence, where 20 shillings
equals one pound and 12 old pence equals one shilling.
Shillings were indicated with a variety of suffixes, e.g.
3s, 3', 3", 3/ all mean 3 shillings. Any number after that
is additional pence, usually 6 (half a shilling) but
sometimes 3 or 9 (a quarter of a shilling or three-quarters
of a shilling).
Notes: 1st ed.
From WorldCat record:
-- London : Ronald Whiting & Wheaton, 1966
Price from capsule review by Naomi Lewis The Observer 1966-11-27 p28 "A Touch of the Supernatural"
Amazon UK record as of 2016-06-20 (no data)