Ten samples of ruby glass
Ten samples of ruby glass showing stages in the development of the colour from near white ("unstruck") to dense colour ("overstruck") (1980)
One of ten samples of ruby glass showing stages in the development of the colour
One of ten samples of ruby glass showing stages in the development of the colour
One of ten samples of ruby glass showing stages in the development of the colour
One of ten samples of ruby glass showing stages in the development of the colour
One of ten samples of ruby glass showing stages in the development of the colour
One of ten samples of ruby glass showing stages in the development of the colour
One of ten samples of ruby glass showing stages in the development of the colour
One of ten samples of ruby glass showing stages in the development of the colour
