Hi!  I have this Cream of Wheat advertising poster 'where the mail goes cream of wheat goes'  I'm wondering if anyone knows the date or any other info on this poster?  I believe the original was an oil painting in the early/mid 1900s.  This one says 'litho in USA' bottom left so a reproduction from some point but I can't find any info or any similar posters that have the brown border and litho in usa printed. 

I was able to find an early version with a green border (as opposed to brown) and no litho in usa printed on the bottom.

If anyone has an info it would be appreciated, thanks!