Posted 13 years ago
Rosemarie
(10 items)
Does anyone recognize this bead counting mechanism? It's made by the Lightning Calculator Co. of St. Petersburg, Florida. The accompanying "Operating Instructions For the Quincunx Model WD-4" say this model is furnished complete and ready to use with zipper carrying case, self contained easel, beads and scale holder. It seems to be more for statistical analysis than for actually calculating.
