Spaced Concentric with Cable Twists

Encircling a cluster of green/white cogs are 3 rings of colourful millefiori canes alternating with upright and horizontal cable twists. Cane and twist colours include powder blue, pistachio, purple, yellow & orange.  The ground is translucent mottled cranberry.  
Slightly concave base with rough, unfinished pontil. Darkish tint to the glass - late 1930s or early post-war Moncrieff period.