PMG Very Fine 25 EPQ - FR-581 Signatures of Lyons/Roberts - The Frost National Bank of San Antonio Charter # 5179. $20.00 1882 Value Back Large Size National Bank Note from the Alamo City. Nice margins and Exceptional Paper Quality "EPQ". This is the only $20 1882 Value Back known in the Track&Price census. The note offered here previously sold in 2010 for over $4700 Front - At Left The Battle of Lexington August 19, 1775. At right Columbia leading procession. Green Back with eagles on both sides.