Letter (paper size) "official" "Government Letter" size, , was used in government, while paper was standard in most other offices. In the U.S., paper density is usually measured in "pounds per ream" (of 500 sheets). Typical Letter paper has a basis weight of paper of – the weight of 500 sheets (a ream) of paper at and at 50% humidity. One ream of 20-pound Letter-sized paper weighs , and a single Letter-sized sheet of 20-pound paper weighs , which is equivalent to 75.19 g/m. Some metric information is typically included on American ream packaging. For example, 20-pound paper is also labeled as 75
Norman B. Ream he opened a store. Later, Ream moved to Iowa, where he purchased cattle and grains on credit and sold them to farmers on credit. He ran up debt as a result of a crop failure, but managed to pay it off, and moved to Chicago in 1877. Shortly after, Ream joined the Chicago Board of Trade. Ream would rise early to talk to the people at the Union Stock Yards before the Board of Trade opened at 10AM. Over the year, Ream became an investment advisor to business magnates like J. P. Morgan, Marshall Field, George Pullman. Later, with Robert