This is a  complete cast iron floor register with the grate and working damper.  It measures approx 13 1/2" x 12" x 2 1/4."  I just cleaned the dirt and dust off--otherwise it is in the original condition.  There are 4 screws that hold the damper in place, but there were only 2 in the register, and one screw head is damaged.  I will send the screws for size, but you will want to get 4 alike.