Had an early 870 show up that was owned by the father of a very good family friend. He'd sold the gun to another local guy some 30 years ago who, apparently stored it next to the water heater and left the horrendous pitting you see. Fast forward 30 years and it shows up on a table at a city wide garage sale. Luckily most of the really bad pitts where far enough away from the lettering on the receiver that I could save all of it. I couldn't let it rust in peace, so polished it out and dunked it in the tanks. This one took the better part of two weeks of 1 and two hour draw file and polish sessions to get to this point. I'll post the finished gun as soon as I get the WD oil off tonight. I was really pleased with it when it went into the oil bath. This is the second time I've fired up those tanks.