Shown above, Gwen with her just-finished project, a cleaned and restored 1791 candelabra, and her next project, an assessment of a Rubens painting.
The candelabra was originally part of a matched pair, but sometime in the past the second was cannibalized to restore the first (and now only the base and central stem remains). Iron wire was used in the replacement, instead of the original brass, and over the decades the oxidized iron started to stain the crystal.
After careful mapping and detailing the nearly 200 pieces, it was disassembled, shown lower left, thoroughly cleaned and triple-rinsed. Replacement brass was chemically treated to match the patina of the original, shown middle left, and everything was reassembled with a really tiny pair of pliers, middle right. After reassembly, far right, there's no time to dawdle. There's always something ready to go next in the lab, including the tricky embedded-sand finish in a modernist masterpiece that's about to go out on loan.