For the less common Stanleys (the #10 family, #2 etc.) how much does a repaired break affect its value ? A large proportion of the #10s in particular show the classic broken mouth with a braze or weld to at least one side.
I've just been trying to put a value on a #2C Sweetheart with brazing to both sides of the mouth. Now that's a valuable little plane, even as a "user" grade tool
In similar vein, how about English infills that have suffered shrunken infill blocks, unsupported sides and the resultant lengthways sole cracks ? Again it's not a hard repair, but you have to take the cross pins out to dismantle it and they don't easily (shouldn't ?) go back without leaving a visible repair.