(Barn Quilt Mailbox) NW of Troy, Concord Township, Miami County, OH. OH41 (Main St.) NW 1.7 miles from jct with I75 exit 74 in Troy, N. on Washington Rd. 0.6 miles to the mail box on the E. side of the road at 2373. (N40 04.390 W84 15.588) Photo by Jack & June Schmidt 6-5-15.