Aha! Not quite, but that did have a link to what I did mean! The Appendix H "Local/Obsolete Data Elements" page at: http://www.loc.gov/marc/bibliographic/bdapndxh.html Thanks! I missed this becuase on the table of contents for the MARC documentation, Appendix H is just called "Local Data Elements", without the word "Obsolete", which left me not realizing on reading the ToC that that's what I wanted. Phew. Thanks! Jonathan Walker, David wrote: > Do you mean just the 'CONTENT DESIGNATOR HISTORY' at the bottom of each page? > > http://www.loc.gov/marc/bibliographic/bd4xx.html > > --Dave > > ================== > David Walker > Library Web Services Manager > California State University > http://xerxes.calstate.edu > ________________________________________ > From: Code for Libraries [[log in to unmask]] On Behalf Of Jonathan Rochkind [[log in to unmask]] > Sent: Wednesday, January 27, 2010 11:59 AM > To: [log in to unmask] > Subject: [CODE4LIB] marc documentation? > > I know I've seen documetnation on the LC site before for since-abandoned > marc bib tags, like 400. But I can't for the life of me find it now > navigating around the website or googling. does anyone know where this is? > > Jonathan > >