Antique adding machines and calculators were primarily created for advancement of commerce by allowing users to quickly type series of numbers. This would help avoid hand writing on scratch paper and associated costly errors. Early adding machines were very large and heavy. They offered amazing ornate scroll work and such designed with nickel steel cases. The minds who created these relics were definitely ahead of their time as we still use them today. These old pieces of our commercial past have regained demand by collectors and interior designers as they provide a wonderful appearance for the Art-Deco eye. As you browse our listings you will find this site unique as it provides a marketplace with attractive terms, large crisp pictures and convenient checkout features.