After the first stage, I moved on to the second (staining & sanding) and then third & final (putting on the knobs).
I first beat it with a chain to try and age it a little bit (in hind sight, I wouldn't do that again. It looks too intentional):
Then stain (4 coats total):
And in between each coat I would lightly sand & remove stain in certain spots to give it an antique feel:
Then remove the dust particles with tacky cloth before adding another coat, it's a cloth very similar to this dusting cloth:
And once I was all done, I added the finishing touches: