[jmg1213]

I recently purchased a home that the original portion was built in 1872, but the addition where the kitchen is located was built in 1920. I removed two layers of linoleum and a base of fiberboard to find the original hardwood flooring. I love the patina and don't mind the imperfections. There are a few small area that has some paint. I would first like to remove the paint with minimal damage to what is below it, then just seal/poly the floor. Thoughts?

 

[Old Thomas]

You could simply seal or finish it. In my opinion it looks filthy with decades of dirt worked into the surface. I would sand it and start with fresh wood, it could look beautiful. I sanded my 1900 era floor and it looks great.

 

[SeniorSitizen]

Keep sanding, but you can save time and effort by using a paint scraper in difficult areas. I would personally modify the scraper blade some by rounding the corners a little to prevent gouging and possibly putting a slight radius on the entire blade length, but try it as is to determine if it works for you.

 

[chandler48]

Rent a random orbit square floor sander. Easy to use and it won't gouge like a drum sander will. You'll be amazed at the results. Good looking floor.

 

[Bud9051]

Here's a thread where the OP is restoring an old home and it has some great looking floors.
https://www.diychatroom.com/f49/bought-house-sight-unseen-renovating-561170/

Bud

 

[huesmann]

Looks like you have a little cupping too?

 

[Colbyt]

Scrape off the paint with a sharp scraper. The entire floor should then be lightly sanded. Get a pro or use one of those rental pad sanders from HD. As you say you like the slightly rustic look you might be able to get away with 2 passes.

 

[Nealtw]

This area may want to be replaced.

 

[ron45]

You can rent one of these.

 

[ron45]

Just in case you need the information.

I forgot.
I like to use a lambs wool applicator instead of a roller