Rare Shooter Size Red White & Blue 3-Ridged Solid Core Swirl w/ Unusual Construction of 4 Sets of Outer Lines

Condition: MINT
Grade: 9.7
Size: 3/4″

Beautiful, Twisty & Rare Shooter Size 3/4″ Ridged Solid Core Swirl of Red, White & Blue, with Red in the 3 Valleys and Blue Capping the 3 Ridges. Unusual construction of the outer layer (which normally mimics the construction pattern of the core, has 4 sets  of closely spaced white outer lines (not 3 which is what would be expected). Early faceted pontil dates this marble to circa 1850-1880. Mint original surface.