Pony Express, Paid $2.50, Neat ms. endorsement across top of 10c Green on Buff, Star Die Entire (U33) to Illinois. Clear Green "St Joseph, Mo. Apr. 26", A Rare cover under the $2.50 rate in effect Aug. 1860-Apr. 1861; one of the last covers carried at the $2.50 rate. Trifle reduced extreme left, nevertheless Very Fine