Although nowadays synonymous, Krys-tol is actually the name for a glass making process created by Benjamin Jacobs about 1905. There are a number of patterns made with this process and are marked Krys-Tol. Chippendale is one of those patterns.
The Chippendale pattern was first made by Ohio Flint Glass Company (1905-1908) and they obtained a patent on the design 05-Feb-1907. When they closed, Jacobs went to Jefferson Glass Company.
Jefferson Glass produced the Chippendale pattern from 1909 -1919 when they sold it to Central Glass. At this point in time, there were more then 300 items in the line.
Central Glass produced the pattern from 1919-1929 when they sold the molds (and rights) to Charles J. Pratt; their agent in England.
Mr. Pratt had G. Davidson & Co. produce the items for him. Circa 1933 Davidson purchased the molds from Mr. Pratt. They continued to produce items in this pattern well into the mid-1950's.
Both Jefferson & Central had a large International market for this pattern. Various records indicate they shipped goods to Western Europe, India, China, Australia and the United Kingdom. In the U.K. this pattern was sold by the National Glass Company.
Jefferson opened a factory in Toronto Canada in 1912 which was later taken over by Dominion Glass Co. It is quite likely, Chippendale pattern items were also produced there.
Bagley (UK) produced a few items in their "Queen's Choice" line which have a striking similarity to Chippendale, especially the salt.
In addition to paper labels, items have been found embossed with "Krys-Tol", "Chippendale-Krys-Tol", and "Pat, Feb 5, 1907-Krys-tol" It has been reported that only the items produced by Ohio Flint, Jefferson, or Central carry the embossed markings.
Colors (colours) Produced primarily in crystal, items can be found in Blue, Black, Amethyst, Amber, Canary, Green, and Chinese jade. Davidson is reported to have made some items in both their Amber and Green "Cloud Glass".