Design dealership Converso has opened a new showroom in LA, featuring a selection of rare modern design pieces. From left, cabinet by Raymond Loewy. ‘Torchere’ lamp and cabinet, both by Karl Springer.

For Lawrence Converso’s Design Miami debut, the 20th-century dealer’s intent was clear: to bring a little piece of California to South Florida. His much-Instagrammed booth—awash in pale–yellow and ...