The target resource for this PURL can no longer be traced. The following is a list of the targets this PURL was previously assigned to.
| Timestamp | Target URL | Note |
|---|---|---|
| 03/20/12 11:45:36 | http://www.main.gpo.gov/HC/ECO/Typeline/typeline_archive.html | |
| 12/23/13 16:13:32 | http://www.main.gpo.gov/CommunicationsCCO/ECO/Typeline/typeline_archive.html | |
| 07/04/21 15:00:59 | https://purl.fdlp.gov/history/GPO/gpo20510 | internal use only |