Virgile Thévoz and Josephine Choquet are no strangers to Sight Unseen, but their latest collection, which is debuting at Rossana Orlandi as part of the "i Dream of Luxury" exhibition in Milan this week, might be our favorite yet. The two London-based designers know from high-end products, having studied in the Design for Luxury and Craftsmanship program at ÉCAL, and their new Cast Brass collection explores the effect of time on the value of an object. The polished brass accessories are half-cast in transparent resin blocs, allowing the exposed metal to oxidize over time and cast half to remain pristine and shiny forever.