Original file (3,294 × 2,090 pixels, file size: 19.73 MB, MIME type: image/tiff)
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 01:24, 30 December 2020 |
![]() | 3,294 × 2,090 (19.73 MB) | John P. Sadowski (NIOSH) | Uploaded a work by {{Unknown|author}} from https://ark.digitalcommonwealth.org/ark:/50959/70795g78v with UploadWizard |
Original file (3,294 × 2,090 pixels, file size: 19.73 MB, MIME type: image/tiff)
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 01:24, 30 December 2020 |
![]() | 3,294 × 2,090 (19.73 MB) | John P. Sadowski (NIOSH) | Uploaded a work by {{Unknown|author}} from https://ark.digitalcommonwealth.org/ark:/50959/70795g78v with UploadWizard |