Hi all, thought a nice thing to do for my dad for his birthday would be to restore the two cast iron pans he uses. I've attached pictures of the two, which basically show rust wearing through, particularly on the smaller of these. I've read conflicting advice (abraid back with steel wool on the specific areas Vs strip with lye all over and fully reseason). I have minimal experience, so was wondering what the right approach is likely to be? Thanks in advance!