Great question! Sometimes the stripper can run or drip onto the legs or lower sides of a piece of furniture. If you want to avoid that, you can use painter’s tape or painter’s plastic to block off those areas so the stripper doesn’t drip onto them. I’d also recommend checking out this blog for more information: https://arayofsunlight.com/how-to-tape-off-drawers-for-painting-with-a-paint-sprayer/

I bet it would work on finishes from 91. It has worked for me on modern finishes as well as vintage and antique finishes.