Antique Railroad Doorknobs, Y&T Plates, Lock & Key

This is a collection of Antique Railroad Hardware from an Old B&O Railroad Building in Chicago IL. T are 2 sets of Ornate Doorknobs & 2 Ornate Y&T Plates. The plates measure 12, 3/4 inches x 3 inches. T is 1 Hinge and 1 Door Strike. Both Doorknobes are dated Feb. 21, 1882. T is also a small piece that looks like a turn-key but I,m not sure. It is shaped like a cross. The other key still has the old B&O Railroad tag as you can see in one of the photos. On the tag it reads "City of Chicago, Room - 455". Although the doorknobs are dated from the 1800's, the lock and key seem to be from the 1930's or 40's. Everything weighs 10 pounds. Let me know if you have any questions. I accept Money Orders, Cashiers, & Personal Checks. I,m sorry but I do not accept paypal. Thankyou for looking.