Farmall Cub

I would like to talk to anyone that might have salvaged some of the free-standing roof-top sign letters that were displayed on the top of the IH Pylon dealership buildings. I would like to find some of these. I have enclosed a picture of the type of signs that I am talking about. Through advertisements, I have seen the following words: Tractors, Trucks, Parts, Sales, Service, Farm equipment.
Thanks for any information