Pearl-shaped mug resting on a half clamshell with barnacles. Pearl and shell are one piece. It is marked for The Reef (Caliente Tropics) in Palm Springs. The pearl itself is a pinkish opalescent and the clamshell is white. This mug was only available to patrons who dined at The Reef on Valentine's Day 2018, and the mugs were limited to two per dinner reservation. Not numbered on mug.