Low quality, enamel over base metal barrel, but a truly unique drop-action dip pen. Pushing the top button “opens” the other end, allowing the dip pen to drop and lock into place for use. Holding the barrel upside down and pressing the button again, reverses the process. It’s a clever, & simple, technique.
"Eagle Pencil Co.", "ARROW", "Pat'd. Feb 1st, 1887"