“An assistant for merchants, mechanics and farmers.”
The objective of this scale is to give rapidly the result of multiplying a quantity by a unit price in order to get the total price.
The unit price can vary from ¼ of a cent up to $10 USD.
The quantities vary from one unit to 1,000 units.
Each page is assigned a unit price. To calculate a total just choose the page corresponding to the unit price and read the result on the line of the quantity sold.
Are you interested in adding this machine to your collection?