It could be residue from card printing. Was a period added to the end of a spelled-out series tracing posted to the bottom of the card? -- Mark K. Ehlert Alma: NA02 Cataloging and Metadata Primo: MT NA01 Librarian O'Shaughnessy-Frey Library University of St. Thomas <http://www.stthomas.edu/libraries/> "Experience is by industry achieved // And perfected by the swift course of time"--Shakespeare, "Two Gentlemen of Verona," Act I, Scene iii From: Program for Cooperative Cataloging <[log in to unmask]> On Behalf Of Yang Wang Sent: Friday, July 19, 2019 12:19 PM To: [log in to unmask] Subject: [External] [PCCLIST] Ending mark of punctuation in 830 Per LC-PCC PS for (RDA) 1.7.1.2a-b, a right parenthesis ")" is an ending mark of punctuation. So, in the following example in OCLC's Support & Training-Bib Formats and Standards (https://www.oclc.org/bibformats/en/8xx/830.html<https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.oclc.org%2Fbibformats%2Fen%2F8xx%2F830.html&data=02%7C01%7Cehle0001%40STTHOMAS.EDU%7C6742b37bac0a474ed54008d70c6d95f0%7Ca081ff79318c45ec95f338ebc2801472%7C1%7C0%7C636991537121421467&sdata=IknBpfPXZAq9eJ0CARBr7EZaL1Ohw8cQwlCBfCPRC%2Fs%3D&reserved=0>), [cid:[log in to unmask]] the final punctuation (period) seems to be unnessary. But in OCLC's bib file, it is not uncommon to see 830 fields end like that. Is it an old practice? Yang