1.   When adding a "Not the same as" or "Cannot identify with" 667 note to a new authority record, it may be helpful to add a corresponding 667 to the existing record.

Example:

new record being added:

100 1# $a Thomas, Edward, $c printer, of London

400 1# $a Thomas, E. $q (Edward), $c printer, of London

667 ## $a Cannot identify with: Thomas, Edward, printer

670 ## $a The interesting history, of little King Pippin, 1820: $b p. 40 (E. Thomas; printer, Golden Lane, Barbican, London)

670 ## $a Todd, W.B. Directory of printers ... London & vicinity 1800-1840, 1972 $b (Thomas, Edward; printer in London, active 1808-1837)

existing record in the LC/NAF, 667 added:

100 1# $a Thomas, Edward, $c printer

667 ## $a Cannot identify with: Thomas, Edward, printer, of London

670 ## $a Little Tommy, 1858: $b t.p. (Edward Thomas; printer, Chester, England)

Note that this information is better reflected in 670 notes.

2.   If a linking reference would normalize to the same form as the heading or another reference on the same record or to the same form as a heading on another record, add an "Old catalog heading" 667 note.  It may also be necessary to use this 667 note if the linking reference method of tracing a pre-AACR2 LC heading is not appropriate (see DCM Z1, Introduction).

Example:

100 0# $a Napoleon $b I, $c Emperor of the French, $d 1769-1821

667 ## $a Old catalog heading: Napoléon I, Emperor of the French, 1769-1821

See also:

Section II:  Additions and Changes to Authority Records