CSA 12-ADa, 10¢ milky blue (some students called opaline), 3 margins, used with manuscript cancel of Ivor Va Aug 17th on homemade cover to Thomas F. Knox, Fredericksburg, Va; part of back flap missing. Scarce small town cancel. In census of 200, there were only 320 people. It is in Southampton County. Thomas F. Knox was a Fredericksburg merchant who ran a local shipping company, as well as a grist mill. $100.