Make any Necessary Repairs
The furniture might need some repairs. If so, keep in mind that the less the piece is repaired, the more value it retains as an antique. Before cutting off rotted wood, make sure to match the pattern. If possible, use the other side of the furniture as a template for cutting replacement pieces.
If replacing drawer or door hardware, look for knobs and hinges that are the same style and age as the furniture.
Assemble replacement pieces, using glue and a pneumatic nailer. If a pneumatic nailer is not available, use a hammer and a nail set: just take care to avoid damaging the wood.