Bronze distributor shaft gear wear

I didn't read this whole thread but just wanted to let you know that I just got both a BB and SB melonized gears from Hughes this week
What did they look like.I ordered a sb one in January,from Hughes.They sent me a bb one by mistake.They replaced it with a sb one on there shipping dime.both were just flat black kind of velvety looking.The only melonized gear I’ve seen was gm,It was covered in spots that were lighter in color.