Roman Bronze Crossbow Brooch

Roman Empire, Circa 1st to 3rd Century AD Knob ended and pin (intact) and a incised arched bow and a knob finial at the top, plate behind. Pin (intact) with catch plate.  An ubiquitous find from antiquity as the absence of zippers made this an important item for every citizen so thie togas would not fall off! Excellent intact condition nice olive green patina. See Hattatt, Ancient and Romano-British Broches, for a similar example. Size 3 inches Length. + custom base. Provenance: Ex Rhode Island collection 1980s-90s