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YO URS... without charge ! THIS 6 4 PAGE MANUAL Edited by Columbia-Southern's® technical staff, this handbook on Soda Ash is the most comprehensive ever published. If you have not received your copy of this authoritative 64 page illustrated manual, you are invited t o write today for your free copy. Write on company stationery to Columbia-Southern Chemical Corporation, One Gateway Center, Pittsburgh 22, Pennsylvania.
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