Stmr. Sierra Nevada/Via Nicaragua/Advance Of The Mails, neat strike of blue oval handstamp on orange buff cover to Peters Creek P.O., Pa. with 3¢ dull red (11A) horizontal pair, margins to in at right, tied by "New-York Nov" cds; corner flaw lower right, a Very Fine strike. Estimate  $500 - 750. $0 (Image)