CATALOGS, COMMERCIAL--ILLINOIS--CHICAGO.
SPEci Scuumectns Cameron, Amberg & Co.,Chicago. SCH , Amberg Ss systems of letter filing,
.T859 illustrating Amberg's cabinet letter -B65L files and systems of simultaneous no.2 indexing and filing, to effect by rapid and accurate work, direct and instantaneous reference to business and private papers. Chicago, 1881. lv. illus. 25cm, No. [2] in a volume with the binder's title: Manufacturers' catalogs. : 1. Files and . filing (Documents):
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