Pound (mass) for the weight of certain precious metals, especially in the trade; these are normally quoted just in ounces (e.g. "500 ounces") and, when the type of ounce is not explicitly stated, the troy system is assumed. Historically, the pound sterling was a Tower pound of silver. In 1528, the standard was changed to the Troy pound. The avoirdupois pound, also known as the wool pound, first came into general use c. 1300. It was initially equal to 6992 troy grains. The pound avoirdupois was divided into 16 ounces. During the reign of Queen Elizabeth, the avoirdupois pound was redefined as
How Many More Years Midnight", described by Phillips as "the most different record I ever heard", was probably recorded at a different session. Phillips had not yet set up Sun Records and regularly leased his recordings to the Chess label in Chicago. The record was issued as Chess 1479 on 15 September 1951, with "Moanin' at Midnight" as the A-side and "How Many More Years" as the B-side. "Moanin' at Midnight" entered the R&B chart on 10 November 1951, and was followed four weeks later by "How Many More Years", which became the more popular side and rose to no.4 on the chart. The