Original Brass Door Knob from the Insurance Company of North America Home Office Building. Door Knob placed on Nice Wood Backing for Display. Wood Piece is 11 7/8 x 9. Actual Door Knob with Brass Back is 3 1/2 x 5 1/4. Very Interesting Piece.!- See Link Below for more Pictures and Auction Item information like Min Bid, Bulau, etc