Hey roger, pat again. heres a vachetta chair that was used as an everyday office chair so im guessing most of the browning is from sweat and oily substances coupled with some droplets that is probably some kind of tannin stain like coffee or tea just wanted to get your advice on how i should proceed with this piece.
1a scope:
1b scope of seat:
2a close up of seat:
2b seat concerns:
3a right arm:
3b left arm: