Clog almanac

a primitive kind of almanac or calendar, formerly used in England, made by cutting notches and figures on the four edges of a clog, or square piece of wood, brass, or bone; - called also a Runic staff, from the Runic characters used in the numerical notation.

See also: Clog

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.