I thought I had this one figured out, but I might have talked myself into a diagnostic that was really, really close. Can any of you fine folks make a match? http://www.seateddimevarieties.com/date_mintmark/1889varpage.htm
Oh yeah, I speak Fortin! This was an easy one. The denticle ruler is 0C, and 107 is a match. I could be wrong however, you'll have to double check.
You did it...kinda...mostly...you had the key. F-107 is Obv7 with RevG-DDR#4 and DR OC, but DDR#4 doesn't show doubling on the lower leaves. F-123 is the only other DR OC with a DDR, and - wouldn't you know it - Obverse 7. And it looks like RevE-DDR#2 is a pretty good match. Thank you for lighting the way.
Is Fortin a variety Label? Such as wexler? And if it is, does it have a primary coin it is regarding?
Google is your friend. When you run into something you don’t know on here, google it. I have a book on Seated Dime varieties by Brian Greer that I’ve used in the past but, like you, I had no idea who/what Fortin was. 2 minutes on google gave me the answer. Now I could have asked the same question as you. “Is Fortin some sort of variety reference? Or with a minimal amount of homework, I can ask: “I used to use Greer’s Seated Dime book, is that still a decent reference or is Fortin the new standard for seated dimes”? Just a little advice BTW: Seated Dime guys. Any quick thoughts on Greer vs Fortin for someone who doesn't specialize in Seated material?