Large "V"	Small "V"
No "V" (Black)	Medium "V"
Medium "V" Leaded Band

YEAR	DESCRIPTION	ST#
	Luxfer Prisms were manufactured by the Luxfer Prism Company.  In 1895 Frank Lloyd Wright designed, and Luxfer later patented.  These were U.S. Patent #27,977. Filed October 4, 1897.  Serial No. 654.088.  Here are actually four different versions of the same design.  He patented 12 different designs.
1897	Frank Lloyd Wright Designed Luxfer Prism, Large "V" (Purple Tint)	1897.00.0399
1897	Frank Lloyd Wright Designed Luxfer Prism, Small "V" (Clear)	1897.00.0600
1897	Frank Lloyd Wright Designed Luxfer Prism, No "V" (Black)	1897.00.1000
1897	Frank Lloyd Wright Designed Luxfer Prism, Medium "V" (Purple Tint)	1897.01.0101
1897	Frank Lloyd Wright Designed Luxfer Prism, With Leaded Band, Medium "V" (Purple Tint)	1897.02.0101

 

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