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
Vinnie Ream office of the United States Post Office from 1862 to 1866 during the American Civil War. She sang at the E Street Baptist Church, and for the wounded at Washington, D.C. hospitals. She collected materials for the Grand Sanitary Commission. In 1863, James S. Rollins introduced Ream to sculptor Clark Mills. She became an apprentice in Mills's sculpting studio the next year, at the age of seventeen. In 1864, President Lincoln agreed to model for her in the morning for five months, and she created a bust of his figure. During this time, Ream also began intense public relations efforts,