WD 205 should be noted as an interesting case (see p. 41 of "Colours") - it is (a) a US Signal Corps "Battle Flag" (aka "battle honor flag") awarded to an individual signal officer who distinguished himself in battle - "Winchester," in this case, (b) captured (or "found"?) by CS, (c) re-captured/stolen by US detective and misidentified as a Confederate "No Quarter" Black Flag, (d)correctly identified post-war by US veteran, but (e) inadvertently "returned" to Virginia by the US War Department. (Some people never seem to get the word!)