The pictureshows a view of this Colorful Old Mohawk Trail Massachusetts Advertising Souvenir Pin Back Button. This pinback button is not dated but it is old. It has a colorful image with a Native American Indian hunting with a bow and arrow with a few teepees in the background. It is simply marked as follows:
MOHAWK TRAIL, MASS.
The souvenir pin back measures 1-3/4'' wide. It appears to be in mint condition as pictured.