That is a cool looking broad axe! It's going to take a lot of work to get those pits out though... The normal difficulty of getting through the oxidation layer is compounded due to the depth of the pits. My first broad axe looked similar to that and took me hours and hours to get the pits out near the cutting edge. I'm sure it'll be worth it though. That would look really neat with the a highly polished edge with all the pits everywhere else! Cool find man! Here's mine after all that work...(you can see one knick where I didn't have the will to keep going, I've since fixed it) Really looking forward to seeing yours with a nice working edge on it!