[DCRM-L] When to create a new record?

[Jessie Sherwood]

Dear Thumy,

We get a fair number of interleaved books.
If the interleaved pages are blank or mostly blank, I would not make a
second record for the interleaved version, since it was presumably
interleaved when it was bound rather than when it was published (unless you
can find evidence to the contrary). I would use the same OCLC record for
both items and add a local note indicating that copy # is missing the
portrait, includes X number of blank or mostly blank leaves, and is bound
in two volumes.
If the interleaved pages were heavily annotated, however, I might create a
separate manuscript record for the interleavings with a 501 noting that it
is bound with copy # *Principia*. Then I would put both copies of the
*Principia* on the OCLC record, add a local note indicating that copy # is
missing the portrait and bound with the manuscript in two volumes, and then
link the item records for the manuscript and copy # of the *Principia* in
my ILS. If that makes sense?

Best,
Jessie

On Wed, Oct 15, 2025 at 12:57 PM Thumy Webb via DCRM-L <dcrm-l at lib.byu.edu>
wrote:

> Hello,
>
> I don't often catalog rare materials (sadly!) and am looking for some
> advice.
>
> I have two copies of Newton's *Principia *from 1726. One copy appears to
> be the volume described in OCLC #2185758. The second copy also appears to
> be the one described in that OCLC record *except* it was bound as two
> separate volumes with blanks interleaved, and is missing the portrait.
>
> Should I make a new bib record for the interleaved version? Do I use the
> same OCLC record for both copies and explain the interleaving (is that a
> word?) in a local note? Something else?
>
> Thanks for any advice/opinions you can provide!
> --Thumy
>
>
> _____________________________________
> *Thumy Webb, Original Cataloging Librarian*
> Fondren Library · Rice University · Houston, TX
> thumy.webb at rice.edu · 713-348-2604
>
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-- 
Jessie Sherwood
Associate Librarian
The Robbins Collection and Research Center
University of California Berkeley, School of Law
Tel: 510.643.1236
jcsherwood at law.berkeley.edu
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