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operation card

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Baltimore, Md. The 'work' cards, by means of which constant check is kept on what is being done with each block of social security account applications, are punched in the Production and Control Section. Each hole in each 'work' or operation card represents a letter or a numeral. When translated, these give necessary pertinent data for the daily and permanent work records of the Social Security Board Records Office in Baltimore, Maryland. The photograph above shows a worker in the Production and Control Section of the Records Office punching 'work' on operation cards

Baltimore, Md. The 'work' cards, by means of which constant check is k...

A woman sitting at a table working on a machine, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Date based on date of negatives ... More

Baltimore, Md. The 'work' cards, by means of which constant check is kept on what is being done with each block of social security account applications, are punched in the Production and Control Section. Each hole in each 'work' or operation card represents a letter or a numeral. When translated, these give necessary pertinent data for the daily and permanent work records of the Social Security Board Records Office in Baltimore, Maryland. The photograph above shows a worker in the Production and Control Section of the Records Office punching 'work' on operation cards

Baltimore, Md. The 'work' cards, by means of which constant check is k...

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description