Small envelope, measuring 3.5 inches by 2.25 inches. There's a ribbon looped around and tied in a bow along with a hand-drawn rose. "Blest Rose" is written at the top. The envelope is sealed, but I can see that there's something inside, my best guess is a dried flower, likely a rose based on the decorations.
Found in "James Shore's Daughter" by Stephen Vincent Benet. Published by Doubleday, Doran & Company, 1934.