I just purchased and antique Colonial home built circa 1900, The Banister and railing going upstairs seems as if it hasnt' been touched in years. It has what I think is an oil base varnish very dark brown almost looks like black paint. I like it very much, but there are some dings and chips in the varnish and has some old paint stains here and there. I would like to touch it up or paint over it but keep the look it has now. Is there anything on the Market today that I could use to touch it up or if i used paint what would be the best to put it rather than having to remove the old varnish.