In homeowner Barry Baumel’s office, custom charcoal-hued built-in bookshelves give center stage to his father’s sewing machine, which helped underwrite Barry’s medical training. The curving Crescent desk, from the Brown Davis Interiors collection for Keith Fritz, sits atop a Kyle Bunting cowhide rug; two existing fauteuils were given an ebony lacquer and reupholstered with Romo fabric.