History of changes

All other interesting (or not:-) information can be found here... For the moment it serves as the site change log.

March 29, 2015: The Barringer Zeiss Lens List will slowly be incorporated into the DB.

October 30, 2013: Zeiss Ikon brochure # 200 is available.

June 30, 2013: The wartime Agfa Photoblätter are available in the Others tab. A new camera (Contax I) has been added to the Gallery. Added acknowledgements in the opening screen.

May 12, 2013: AK - Ansichts Karten (postcards) query made.

May 1, 2013: WWII Agfa Photoblätter are scanned.

March 10, 2013: The work started to populate the DB with body en lens serial partnummers. More information of a Bestellnummer is available via the searchNumber facility.

October 20, 2012: Almost all brochures and katalogs of Zeiss and Zeiss Ikon are uploaded; it's about time to do some other content.

July 13, 2012: Start of Zeiss Ikon Bestellnummer specific entries via the searchNumber screen; VEB and Carl Zeiss documentation available.

June 3, 2012: First Zeiss Ikon documents are retrievable.

May 25, 2012: All old style numbers (ICA) are all inside - finally.

April 10, 2012: Picture Galleries have been created for KOV Utrecht and Zeiss.

April 7, 2012: The current site is now hosted by One.com, URL is www.holoceen.nl.

February 19, 2012: A few of my books are in the Bibliography shortcut. The text search is functional.

January 31, 2012: the generalized query is working! Now both the ICA as the computer system can be questioned.

January 14, 2012: The Voigtlander data - after the merger in 1966 - are merged in the computerised numbers DB.

January 10, 2012: The original Zeiss Ikon Bestellnummer, after 1956 computerized version, are in the DataBase.

December 30, 2011: First completion of the process line: Web user query, PHP script, MySQL DB connection and retrieval, PHP postprocessing and display of the results at the user browser interface.

December 24, 2011: The MySQL backup from Linux to Windows works!

November 19, 2011: finally a working layout is established, using an absolute layout scheme.


  • 31-11-15: Zeiss Historica 2015 arrived
  • 27-12-14: Zeiss Historica 2014 arrived
  • 7-11-14: New Carl Zeiss doc
  • 7-7-12: Zeiss Historica Spring 2012 arrived!