This variety an JR-4 rarity 1 1837 thick center 8 Bust dime. I say in F condition a 90.-100 $ value, Very cool die crack "That is not PMD"! 359,500 mintage the two varieties comes from a mintage interruption in mid 1837 to allow a new Gobrecht design the no star Liberty Seated dime.
Die cracks are just that cracks in the die. Thus when striking the coin the image transfer it is raised . A scratch would be missing medal or incuse not raised, as pictured in the op image.
There are 4 die marriages for this date , your's is the most common one. However I still like it a lot. As a variety collector, I would be up to try and find the other 3. That sometimes drives me nuts having so many sub sets of type coins. I have a half dime with a similar half dime with a die crack like the one on yours. At 5 am I don't recall the date. I will have to have a look later today after I get in from work and post it. OK it drove me nuts it's an 1836. And when I post it later you will be surprised .
Larry what's that in the denticals below the 1? Looks to be the top of an 8. And look at the second dentical left of the die crack a 3?
I'm not sure. That's the best image I can get. The only note I made on this coin was that I thought it was the Breen #3215.
Larry, your 1837 is the JR-3, an R-2 die marriage. This was the third (and fairly obviously final) use of this obverse die. A total of two obverse dies were used to create 4 1837 dime marriages. Both of these obverse dies failed catastrophically in this manner--probably due to the higher pressures created by the switch to steam presses in 1836 (which also saw one of the two obverse dies fail the same way.)
Larry your image is great and if you look below the 1 and 3 you'll notice a misplaced date . Nice coin for sure a lot going on with this one.
I wish we had all four varieties on this one to post together to compare all four. Again Larry that's one pretty dime! One of the best I've have ever seen of that date.