This antique paper towel holder embossed with 'Nibroc Kraft Towel made by Brown Co., Portland, ME,. U.S.A.  Patents Pending'  is in excellent antique condition, as found except for brushing off the dust.  It appears to be made of cast metal; the front of the piece itself shows no signs of rust.  I have not tried to further clean  it.  The 'arms' holding the rod on which the roll of paper towels rests do show some rust as does the rod and the back.  The wing nut twists easily on the end of the rod.  The Brown Co. archives held at Plymouth State College in New Hampshire dates this to 1921.  If shipping is less than quoted i will gladly refund the diffeerence