August Sign of the Month- Vintage Hire's Root Beer Sign

This great old Hire's sign is painted straight on the wall of this old grocery store in Portland, Oregon.  I saw it and had to take a picture.  This is also a testament to the durability of hand painted signage versus cookie-cutter vinyl.  How long has this been there?  Judging from the bottle, probably from the 1940's or 50's.  I hope its not painted over in the future.