In a message dated 6/1/2001 4:17:30 PM Eastern Daylight Time, [log in to unmask]
writes:
> The old glassy square edged tile was glassy and square edged because it was
> made from sheets of opaque white glass cut into squares.
Oh, Ralphie ... I am SOOOOO glad you know the answers to these quirky kinds
of questions! Thanks for the great explanation. I am putting it in my "20th
C. Building Materials" book.
M