These two spring binders offer a cumulative record of changes in the market for office machines in the United States over the years immediately preceding World War II. American Office Machines Research Service on New York offered both a monthly notice (those numbered 1 to 38, dating from August, 1937 to August, 1940 are included), an introduction to different kinds of office machines, and detailed descriptions of available models, updated as new models were released. Adding machines, calulating machines, cash registers, typewriters, filing equipment, and time recorders are among the tkinds of objects included.The dimensions are for each of the two volumes.
Compare 1979.3084.162 and 1984.3084.163.
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