Study the surface under natural and raking light, then use a magnifier to reveal finish layers, micro-scratches, and residues. Perform tiny, discreet solvent tests with cotton swabs to identify shellac, oil, or lacquer responses. Track stains that suggest water, heat, or tannin reactions. Each observation prevents heavy-handed steps, informing a conservation-first plan where evidence guides every move.
Old paints may contain lead, and dusty crevices can hide mold or insect frass. Wear a respirator, gloves, and eye protection, and use HEPA filtration when vacuuming. Ventilate thoroughly and isolate your work area. Test for lead with certified swabs, and keep food away. Respecting safety frees you to work slowly, think clearly, and protect both the piece and yourself.
Take wide shots, detail images, and raking-light photos before any cleaning. Record dimensions, moisture readings if relevant, and notes on wobble or looseness. Number repair zones with removable tags. These records anchor decisions, help you replicate tones later, and let others follow your steps. Documentation doesn’t slow creativity; it empowers restraint, confidence, and repeatable, respectful craft.