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 United States and the Reliance Company, as well as banking, serving on the Boards of the First Financial Bank of Chicago and the New York Trust Company (later merged with Chemical Bank, now known as JPMorgan Chase). Ream also served on the Board of Directors of the National Biscuit Company, later known as Nabisco, now a subsidiary of Mondelēz International. Additionally, Ream served on the Boards of the Central Safety Deposit Company, the Metropolitan Trust Company, the Fidelity-Phoenix Fire Assurance Company, the Securities Company, the Cumberland Corporation, the Sussex Realty Company, the Franco-American Financial Association, etc. Ream helped Chicago recover