Do you WANT the original wood to be there? Or do you want to repaint it, and are bringing it to its original state and then painting?
If you are planning on repainting, you Annie Sloan Chalk Paint ... you don't need to sand / strip or anything, just paint right over it ... 2 coats does nicely!
If this is what you want, and need more info, just ask ... I redid ALL the furniture in the house ... it was loads of fun!