Houghton Library no longer used the 909 field for reporting purposes. We use the 920 instead. See here for further application of the 920 field.
indicators: undefined, leave blank
subfields: $$k - Reporting subfield
punctuation: All fields end with no punctuation.
$$k Reporting subfield
We use only subfield $$k. This consists of a string of 8 characters. If you are enhancing an accessions record already started, then bytes 1-3 will already be filled in, e.g. “A11” (or whatever the fiscal year is). You should then alter only bytes 4-8:
byte 4 C (‘cataloged’)
...
bytes 7-8 your initials (you may be replacing some existing initials with your own)
example: H09
909 __ $$k A11C13sw
If you are making a fresh holdings record, then leave bytes 1-3 blank (^^^). fill the first 3 bytes with fill characters (###).
example: H09
909 $$k
...
###C13sw