Star Rank Patch Boy Scouts of America BSA vintage early For Sale

Star Rank Patch Boy Scouts of America BSA vintage early. The embroidery on the front is in excellent condition.

Not sure how to date this patch. I’ve looked at it and other ones I could find online, but can’t really see a difference in the ones listed as different time periods. It appears some have the little white stitches at the tip the Eagle wing higher than others, but other than that I can’t see a difference or know what I’m supposed to be looking for.