Eagle City Post, Philadelphia, Pennsylvania, (2c) black on grayish paper,  without "WS" initials, cut to shape and affixed to cover, cancelled in manuscript, red handstamped "5" alongside, postmarked "Norristown Pa / Aug / 7" c.d.s., to Nathan R. Potts of Philadelphia, some wrinkling, small tear and ink stain affecting adhesive, the odd spot of discoloration, yet an immensely rare local stamp, one of only four examples recorded; with 2024 Philatelic Foundation certificate.