When pulling up carpeting in my old Victorian house, 20" pine floors were reveled. The finish on the floors for the most part are in excellent condition with a beautiful aged patina, I would like to restore the rest of the floor were worn spots accrued to match the rest of the floor without sanding the whole floor, I feel it will ruin the aged patina if I do this. I do not know if the floors are sealed with varnish or perhaps the old way of doing things which is Linseed oil rubbed. How would I be able to tell the difference? I can tell you that there are no water spots on the floor boards at all, could this mean they are linseed oil rubbed. I do not believe these floors were ever refinished and they are approx. 153 years old. Thanks for you time and I do hope you will be able to help me on this. Best regards, Carol Cameron