This is an A.P. Print pencil signed, numbered a.p. And titled "The visitors- Coit Tower". Do you recognize the artist's work or do you know his signature? Thanks for your help.

I think it is: PARTEE
Check signature at:

McCullough Partee Etching 78 Its a Wonderful Town Chicago Water Tower 20/200 | eBay (http://www.ebay.com/itm/McCullough-Partee-Etching-78-Its-Wonderful-Town-Chicago-Water-Tower-20-200-/120785654034)