The Wobble Block : the one big improvement in vertical filing in twenty years / Shaw-Walker, Muskegon, Michigan. Muskegon, Mi. : Shaw-Walker Co., n.d. Flyer : ill. ; 28 cm.

File — Box: 38.5, Folder: 7

Dates

From the Collection: 52.3 Linear Feet

From the Collection: English

Has: No.102, Dana Printing Co., Muskegon on back cover. 1 folded sheet (4 pages) Has: Faster Filing and Finding across the top of the interior pages.

Part of the Grand Rapids History Center Repository

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