Couple more pic's may help. Is that a wheel in the middle?

Hi Rick
Cool relic..
Are the numbers 57189 or 457189??
https://www.google.com/patents/US45...a=X&ei=Oj6ZUvrKLMLnoATw94LIAQ&ved=0CD4Q6AEwAQ
Tim

But Rick says it has "The Ideal / Trousers Rack / Trade Mark" on it??I don't think the item in the patent has anything to do with the pants hanger.