I've come across a lot of Walking liberty Halves while searching, while going back and looking through some I noticed this one. While only having a few markers for the die state I think this is the FS-101. The doubling can be seen in the date and IGWT.
You would have to provide the evidence of split seriff's or notching of the devices, not to mention the die markers. Here are Wexlers examples. https://doubleddie.com/1201282.html
Sorry I had an exceptionally bad day yesterday and hit the devil's nectar a bit harder than I should've. My apologies. What really made me think it could be a doubled die was the date especially the 3 9, and the spread of IGWT. I figured where the coin was worn it diminished most of the rest of die characteristics. Meh it could have been the nectar.
no, no herbs work won't permit, but I do not recommend 3 rock glass full of JTS Brown when you take blood pressure meds. I usually limit myself to 1 but it just went down extra smooth yesterday.