2H. Date of Execution of Unpublished Material (Publication, Distribution, etc., Area)
(USMARC Bibliographic: 260c Publication, Distribution, Etc (Imprint))
2H1. Give the date or span dates of execution as a year or years. Optionally, for single items, include month and day as found on the material.
: Optionally, for collections,
indicate dates or date spans most heavily represented within the collection
as a bulk date.
2H2. Add the copyright date following the date of execution if they differ.
: Optionally, add the copyright date
following the date of execution even if the dates are the same, to reflect
copyright status of the material.
2H2.1
: Optionally, for photographs, add
the date of printing or publication when it differs significantly from
the date when the image (i.e., negative) was
made.
2H3. When the date of execution is an integral part of the transcribed title on a single item, transcribe it as such, and repeat it in square brackets as the date element in the publication, distribution, etc., area (see 1A3 , 1B1.1).
When no date is known, supply a probable date according to the patterns shown in Appendix A, or use the known date of copyright. Give any necessary explanation in the note area. Use the abbreviations "ca." (circa) and "c" (copyright), writing them in the lowercase.
2H5. As a last resort with single items, for which no date can be conjectured, use the abbreviation "n.d." (no date) to indicate this.
: Optionally, always devise a date
to provide some chronological information even if it is only an estimate
of several centuries.
See also:
2. Publication, Distribution, etc., Area
