We bought a mid-1980's condo with an original front door that is the same on ALL the units. The middle panel has a magnificent engraving that is considered "legacy" by everyone living there and no intentions of ever replacing them. We have no problem with that. However, our unit is one that juts out further from others and the sun has done a real number on our etching. I'd LOVE to find a way to clean, condition and restore it to looking HEALTHY, most of all. It's VERY dry looking. But the etches are so close together and imho, deep and I'm not sure how to go about conditioning it down in those deep cuts. I'm afraid to try things since I don't know what I'm doing and I certainly don't want to ruin it further. Especially since a new door isn't in the near future. ANY advice??? Sure wish I could show a pic of what I'm talking about.