Sub-series 1. Sigma-Aldrich Printed Materials, 1952-2009, undated

Arranged alphabetically by subject and chronologically by date, this sub-series contains Sigma-Aldrich printed materials, which were collected by Alfred Bader. It consists mainly of sales literature, employee relations materials, and investor relations materials. Small amounts of public relations, marketing, and customer reference materials are also present here. A few of the items in this sub-series feature images of artwork collected by Bader.

A majority of the printed materials in this sub-series were generated by Aldrich Chemical Company, the corporate predecessor co-founded by Alfred Bader, which merged with Sigma International, Limited and later became a division of Sigma-Aldrich. A large number of items printed by Sigma-Aldrich itself are also found in these files. A small number of printed items published by corporate predecessors Sigma Chemical Company and Sigma International, Limited (the entity which merged with Aldrich Chemical Company to form Sigma-Aldrich) are also present in this sub-series. Single items printed by Sigma-Aldrich subsidiaries Aldrich Chemical Company, Limited and Sigma-Aldrich Company, Limited are also preserved here.

The contents of the files in this sub-series consist of a variety of materials. Company newsletters, product catalogs, annual reports, and annual shareholder meeting notices are the most common items found in this sub-series. Smaller, but noticeable, amounts of quarterly reports, stock prospectuses, programs, and brochures are also found in the Sigma-Aldrich Printed Materials. Small amounts of other miscellaneous printed materials, including, but not limited to, press releases, product index sheets, a handbook, and a sales kit are preserved here as well.