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This historical image was provided by the Center f

This historical image was provided by the Center f

This historical image was provided by the Center f

This historical image was provided by the Center f

This October, 1951 photograph was provided by the

This October, 1951 photograph was provided by the

This historical image was provided by the Center f

This historical image was provided by the Center f

Depicted here in this historic image, was a report

Depicted here in this historic image, was a report

This historical 1943 image, which was provided by

This historical 1943 image, which was provided by

This historical image was provided by the Center f

This historical image was provided by the Center f

Provided by the Center for Disease Control's (CDC)

Provided by the Center for Disease Control's (CDC)

This historical photograph was provided by the Cen

This historical photograph was provided by the Cen

This 1958 historical photograph was provided by th

This 1958 historical photograph was provided by th

20110712-RD-LSC-0200

20110712-RD-LSC-0200

This historic image depicted an industrial hygieni

This historic image depicted an industrial hygieni

This 1953 photograph was provided by the Center fo

This 1953 photograph was provided by the Center fo

Provided by the Center for Disease Control's (CDC)

Provided by the Center for Disease Control's (CDC)

From 1950, this historical photograph was provided

From 1950, this historical photograph was provided

This 1947 historical photograph was provided by th

This 1947 historical photograph was provided by th

20110712-RD-LSC-0204

20110712-RD-LSC-0204

This October 1947 photograph was provided by the C

This October 1947 photograph was provided by the C

This historical image, which was provided by the C

This historical image, which was provided by the C

Provided by the Center for Disease Control's (CDC)

Provided by the Center for Disease Control's (CDC)

This historical image was provided by the Center f

This historical image was provided by the Center f

In this historical image that was provided by the

In this historical image that was provided by the

This historical image was provided by the Center f

This historical image was provided by the Center f

This historic image, provided by the Center for Di

This historic image, provided by the Center for Di

This 1953 photograph was provided by the Center fo

This 1953 photograph was provided by the Center fo

This historical image was provided by the Center f

This historical image was provided by the Center f

This 1949 historical photograph was provided by th

This 1949 historical photograph was provided by th

This historical image, which was provided by the C

This historical image, which was provided by the C

Provided by the Center for Disease Control's (CDC)

Provided by the Center for Disease Control's (CDC)

This historic image, provided by the Center for Di

This historic image, provided by the Center for Di

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