Spall glass- colorless

Colorless glass was difficult to produce because it required the use of impurity free materials. England starting making colorless glass in the 18th century through the use of pure quartz…

Ceramic marble

Complete ceramic marble  buff. Dimensions:  1.4cm diameter Germany was the leading manufacturer of marbles throughout the 19th century and into the 1920s. The U.S began to produce marbles in the…