Overall: 3/8 x 1 x 1 5/8 in. ( 1 x 2.5 x 4.1 cm )
Oval metal charm with image of steepled building on one side, patron saint on opposite side; ring finding at the top.
molded: around outer edge of opposite side: "S. CARLO BORROMEO"
molded: around outer edge of one side: "METROPOLITANA DI MILANO"
Due to ongoing research, information about this object is subject to change.