Cobalt VaseThis exquisite late 19th century American barber bottle, crafted from cobalt blown glass, showcases a rich, deep blue hue complemented by a hand painted white enamel floral motif. The bottle captures the light, transitioning from a profound blue to a softer, moodier shade reminiscent of Yves Klein blue. Cobalt glass, known for its use in both art and industry since antiquity, brings a touch of historical elegance to this piece. Known as smalt when