M.F. Christensen Amber Slag (grade 8.9) (size .74) *111

The M.F. Christensen Amber Slag marble is a rare and valuable collectible from the pre-1970 era. Made in the United States by M.F. Christensen and Son Company, this machine-made marble features a unique slag style that sets it apart from other marbles. With a size of .74 inches and a grade of 8.9, this marble is highly sought after by collectors looking for exceptional pieces to add to their collection.

AMACO Marblex™ Self-Hardening Clay, 5 lbs. 5 lbs., Gray

AMACO Marblex™ Self-Hardening Clay, 5 lbs. 5 lbs., Gray. Knead Marble to increase plasticity before modeling. Keep unused clay in a plastic bag or wrapped in damp cloth to prevent drying out. Durable and self-hardening clay.