Civil War Battlefields Relic with Provenance

Civil War flora battlefield relics, with period Civil War cover sent to Jennete Skinner, Cook Co., Illinois. With period letter that reads in part: “...This rose Alvey picked and sent to me in 1862 from a battlefield after I think the battle of Seven Oaks. The field was arisen with dead & wounded men and horses. The yellow flower was picked the same year from Beauregard’s head quarters. This piece of wood was a piece of the ‘Quaker Guns’ that the rebels had placed in their fortifications, to represent guns and cannon….” This is the first envelope he sent to me Sept 24th 1861. The cover is also noted in the same hand attested to the relics.