1860s postal, Petersburg Virginia Civil War Cover

1860s [Scott# U21] postal envelope, Petersburg VA fancy cancellation, sent by Colonel E.A. Wyatt, Petersburg; addressed to Captain W.J. Crane, Washington, DC. Backstamp 'Carrier'.

US: 1st Class (c.4-10 days) ---------- $12.50
Canada: Priority (c.2-6 weeks) ---- $29.50
World: Priority (c.2-8 weeks) ----- $39.95
Condition Report: The postal envelope is 5.1/2” x 3.1/2”; some edge wear and a little soiling, very good condition.