| CatPair + | 14:15:22, 29 October 2014 + |
| Catalog of Copyright Entries + | 11:28:04, 3 March 2017 + |
| Catalogue number missing + | 19:45:41, 5 May 2012 + |
| Catalogues + | 11:39:30, 17 February 2017 + |
| Categories + | 20:41:19, 15 October 2011 + |
| PD categories named after companies of Germany + | 10:42:26, 14 January 2016 + |
| PD categories named after companies of the United Kingdom + | 10:45:34, 14 January 2016 + |
| PD categories named after companies of the United States + | 14:42:20, 14 January 2016 + |
| PD categories named after media companies of the United States + | 14:41:29, 14 January 2016 + |
| Categories by century + | 18:46:54, 15 April 2013 + |
| Categories by city + | 20:27:18, 28 September 2015 + |
| Categories by city in England + | 13:17:38, 4 February 2016 + |
| Categories by city in France + | 12:54:18, 15 January 2016 + |
| Categories by city in Germany + | 13:28:36, 14 January 2016 + |
| Categories by city in the United Kingdom + | 20:23:37, 28 September 2015 + |
| Categories by company + | 19:52:35, 9 January 2016 + |
| Categories by continent + | 22:31:43, 13 January 2012 + |
| Categories by country + | 22:38:46, 13 January 2012 + |
| Categories by country administrative level + | 17:25:28, 9 January 2016 + |
| Categories by country and city + | 20:26:00, 28 September 2015 + |
| Categories by country and type + | 11:19:20, 23 November 2016 + |
| Categories by country subdivision + | 13:12:56, 4 February 2016 + |
| Categories by county of England + | 13:38:11, 4 January 2017 + |
| Categories by creator + | 13:14:45, 26 October 2015 + |
| Categories by decade + | 23:38:17, 28 October 2014 + |