In Finger: Handyman WIRE - Handyman USA : How to clean old (antique) Duncan

Handyman WIRE - Handyman USA : How to clean old (antique) Duncan Phyfe Chairs? I recently bought 10 old (which the owner claims to be antique (built in the 1920's)) Duncan Phyfe chairs. I would like to preserve the patina and to clean it. To solve the creaks I glued the joints however, I am not familiar on how to clean the chairs. Before going to HD or Lowe's, can someone please suggest on what I ...Finger