Vintage Blue Glass Cat's Eye Marble, Possibly Master Marble Co.

The is a cat's eye marble made with cobalt blue transparent glass. It is a large shooter, about 31/32 inch in diameter, or just under one inch in size. It has a large irregular blob of white glass inside. This simple design and and large roller seams suggest a Master Made Company Marble. The "vanes" are hard to see, and off to side, so a backlit picture and over-exposed picture are included. The marble has some light evidence of use, and some glass ticks, but overall it grades about NM.