absence of uniformity

My question's please to the forum are; 1) Do you think this is machine doubling? 2) Is the difference in the hair as result of machine doubling? many thanks,

Here you can see the legends and the leaves.

Please see the attached image. I have circled what appears to be a difference in the hair both coins are the same year and the same die pairing. The toned coin shows what appears to be machine doubling to leaves in the wreath and to some of the legends. Could this be the reason for the difference in the hair. I have not included a full image of the coin because I'm still thinking whether I will purchase the coin or not.