1851 (Oct 22): Unpaid entire letter from Panama to Rio Negro, struck with very fine strike of oval framed PANAMÁ / DEBE handstamp in red with rate marking '1½' alongside. Somewhat watery ink but fresh and fine. A scarce entire.
1856c.: Entire letter, undated, mailed to Tomas Mosquera in Barranquilla, struck with superb oval PANAMA / FRANCO in red, with '1½' reales rate mark alongside. A fine and scarce cover.