Check the listing for details. Concise Ruler Circular Slide Rule 28N 100973 Dedicated Storage Case Included. Condition: New. Listed at 41.59 USD. Concise Ruler Circular Slide Rule 28N 100973 Dedicated Storage Case Included Description Condition: New Concise Ruler Circular Slide Rule 28N 100973 ○ "Slide rule No. 27N" English-language product ○ The most popular circular slide rule, calculations other than addition and subtraction...Since it is a basic slide rule that can easily perform calculations such as multiplication, division, squaring and cubing, it can be used in all fields. It is used. ○ Types of calculations: calculations related to general multiplication and division, proportionality (exponential percentage), squares, and cubes. ○Back side: Unit conversions such as length, area, volume, mass, temperature, pressure, and speed are described. ○ Scale: D/C, CI, A, K (surface) ○ Dedicated storage case included Payment Please pay within 5 days after the auction closed. Shipping About other area, please ask me. When you purchase two or more my items, I can send them together and discount shipping cost. Depending on the shipping address, a remote area fee may be charged separately. Returns Returns are accepted ONLY if the item was not the item described. International Buyers - Please Note: * Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. * Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. * These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges. * We do not mark merchandise values below value or mark items as "gifts" - US and International government regulations prohibit such behavior.