Marble "Study in Blue" Glass. Collectible sphere. Diameter — 40 mm (1.57”)."Study in Blue" Collectible sphere. Diameter 40 mm (1. 57). A restrained floral composition in a cool blue palette. Shades of sky blue, cornflower, and violet are arranged like a painters study. The flowers and elements are composed in a measured rhythm, without sharp contrasts or dramatic accents, creating a cohesive and balanced whole. The shape is formed entirely by hand in an open flame, without the use of a lathe or mechanical tools.