One-of-a-kind Cobalt And Sea Green Swirled Art Glass Vase

It is a "Leerdam Unica" or "Serica" pillow-form vase designed by the celebrated Dutch glass artist Floris Meydam (1919–2011) for the Glasfabriek Leerdam factory in the Netherlands. These highly sought-after pieces typically feature a distinctive thick clear casing with layered, organic swirls of cobalt blue and sea green bands trapped inside the glass.If you look closely at the bottom base of your piece, you will likely find an incised diamond-etched signature that looks something like "Leerdam Unica Meydam" alongside a specific registration serial number