blackedged

Between two masses of gloomy cloud a tranquil gleam emerges; and that line of light, so blackedged and beset, brings even so its proof that the sun is there.

Under Fire: the story of a squad Henri Barbusse 1904

And Arthur Agar settled down into the old profitless life, with this difference -- that he could not dine out, that he used blackedged notepaper, and that his delicate heliotrope neckties were folded away in a drawer until such time as his grief should be assuaged into that state of resignation technically called half-mourning.

From One Generation to Another Henry Seton Merriman 1882