Bill,
No permanent marks. The blade is carbon as I do not like stainless knives. Yes, I was able to get a fire. I wish I had a picture just a few seconds later. Mrs. JR3 took that one.
I used to be in the same boat. I recently bought a Randall #16 SF (stainless only) and took it into the woods the other day. I must say it worked great I chopped down two good sized trees (5-6 inches across) and made some feather sticks for a fire. After, I then did some carving. After all this I get back to the house and do a paper test and it still cut through the paper almost like it did before I went out!
My model 14 wont be able to cut paper after less work! I touched up the 16 SF's edge on my leather strop (with green compound on it) and it was hair poping sharp again!
After my experience with the 16 SF now I feel the need for a stainless 14! The 16 SF is a great bush knife but its a little lighter than the 14 making it a great carry companion but not as good for chopping down a tree.