"Mail Pouch" is the only chew portrayed on our barns. Only know others by the circular lump in a cowboy's back pocket. That sign doesn't look as antique as some of them!
On a not particularly photogenic barn in Holms County, Ohio
Nice image!!! but the barn is out of level its a bit high on the left of the frame As far as the age of the sign, it may have been touched up sometime in the not to distant past. https://en.wikipedia.org/wiki/Mail_Pouch_Tobacco_Barn looks like Mail Pouch Tobacco lasted until 1992