duodecimals

As they coughed forth, one after the next in the duodecimals of Eriau, Flandry's training reacted.

Ensign Flandry Anderson, Poul, 1926- 1966

If the strong man who had six fingers on each hand, and six toes on each foot, had invented a system of numeration, it would have gone in twelves, nearly like the duodecimals which our carpenters use; unless, indeed, he had been stupid after the manner of very strong men, and not gone beyond sixes.

Anahuac : or, Mexico and the Mexicans, Ancient and Modern Edward Burnett Tylor

I began to rally up my "little Latin and less Greek," in order to surprise the worthy sawyer and his wife; and I had fully determined to work out for him what the amount of his daily wages came to in a week, first by simple arithmetic, secondly by fractions, thirdly by decimals, and fourthly by duodecimals; and then to prove the whole correct by an algebraical equation.

Rattlin the Reefer Edward Howard 1820

a stump puller, and it is sad to reflect how little call life has made for duodecimals.

The Desire of the Moth; and the Come On Eugene Manlove Rhodes 1901