WATERFORD CRYSTAL EVOLUTION NAIROBI POCKET BOWL: 21st c., Waterford, Evolution Glass Pocket Bowl. The Nairobi bowl features a cased black and white, zebra-like pattern, from Waterford's Menagerie line, 8.25"h. This piece retails from Waterford for $250. Waterford crystal Menagerie line is a collection of free-form decorative vases and bowls. Kenya captures the essence of the Giraffe in art glass form. HISTORY OF THE EVOLUTION LINE BY WATERFORD CRYSTAL: The Evolution Line by Waterford Crystal is the Company’s first collection of colored glass since its founding in 1783 by the brothers William and George Penrose in the Irish city of Waterford. Each piece in this line is made by hand and is an individual work of collectible Art Glass. Because of the complex colors, combinations and finishes, pieces can require up to three separate firings in the glass kiln. We have had the privilege of offering this line for several years and It is with bittersweet notes that we share that we have been informed that the Waterford Evolution line is being discontinued because the quality and craftsmanship create a product which the price cannot support. Therefore, this is one of the last opportunities buyers have to obtain these premier pieces in new condition and housed in branded presentation boxes.