<div dir="ltr">For those who are interested, I had inquired with OCLC about this. OCLC has issued revised versions of relevant OCLC Bib Formats and Standards documentation, dated September 10, 2019, which helpfully clarify the proper Leader/06 Type coding for online reproductions of manuscripts.<div><br></div><div><div><div>BFAS Chapter 3 (<a href="https://www.oclc.org/bibformats/en/specialcataloging.html" target="_blank">https://www.oclc.org/bibformats/en/specialcataloging.html</a>) </div><div>Type code fixed field element (<a href="https://www.oclc.org/bibformats/en/fixedfield/type.html" target="_blank">https://www.oclc.org/bibformats/en/fixedfield/type.html</a>)   </div><div><br></div><div>An excerpt:</div><div><font face="arial, sans-serif"><span style="color:rgb(51,51,51)">"For online resources,<u><i> including digitized manuscript resources,</i></u> use codes </span><em style="box-sizing:content-box;margin:0px;padding:0px;border:0px;outline:0px;vertical-align:baseline;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;color:rgb(51,51,51)">a</em><span style="color:rgb(51,51,51)">, </span><em style="box-sizing:content-box;margin:0px;padding:0px;border:0px;outline:0px;vertical-align:baseline;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;color:rgb(51,51,51)">c</em><span style="color:rgb(51,51,51)">, and </span><em style="box-sizing:content-box;margin:0px;padding:0px;border:0px;outline:0px;vertical-align:baseline;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;color:rgb(51,51,51)">e</em><span style="color:rgb(51,51,51)"> instead of their unpublished counterparts </span><em style="box-sizing:content-box;margin:0px;padding:0px;border:0px;outline:0px;vertical-align:baseline;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;color:rgb(51,51,51)">t</em><span style="color:rgb(51,51,51)">, </span><em style="box-sizing:content-box;margin:0px;padding:0px;border:0px;outline:0px;vertical-align:baseline;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;color:rgb(51,51,51)">d</em><span style="color:rgb(51,51,51)">, and </span><em style="box-sizing:content-box;margin:0px;padding:0px;border:0px;outline:0px;vertical-align:baseline;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;color:rgb(51,51,51)">f</em><span style="color:rgb(51,51,51)">, respectively, because all online resources are considered published." (Emphasis mine). </span></font></div><div><font face="arial, sans-serif"><span style="color:rgb(51,51,51)"><br></span></font></div><div><font face="arial, sans-serif"><span style="color:rgb(51,51,51)">The documentation is revised at several other points to reiterate this point.</span></font><br><div><br></div><div>Matt</div></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 17, 2019 at 4:31 PM Matthew C. Haugen <<a href="mailto:matthew.haugen@columbia.edu">matthew.haugen@columbia.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi all,<br><br>MARC and OCLC guidance for the Leader/06 position for "Type of record" provide guidance on the use of  the Type codes t, d, and f for manuscript/unpublished text, notated music, and cartographic material, respectively, as well as for microform reproductions thereof. But I am finding the guidance on electronic reproductions of manuscript material to be less clear, and seemingly contradictory. I am wondering what Type codes other institutions are using for electronic reproductions of manuscripts?<div><br></div><div><a href="http://www.loc.gov/marc/bibliographic/bdleader.html" target="_blank">MARC format guidelines</a> say: "The type of content characteristics described by the codes take precedence over the microform characteristics of the item. Computer files are identified by a distinctive Type of record code only if they belong to certain categories of electronic resources as specified below; in all other cases the type of content characteristics described by the other codes take precedence over the computer file characteristics of the item."<br><br><a href="https://www.oclc.org/bibformats/en/fixedfield/type.html" target="_blank">OCLC's guidance</a> says roughly the same thing, but then adds another detail not present in MARC documentation that seems contradictory: "For online resources, use codes a, c, and e instead of their manuscript counterparts t, d, and f, since all online resources are considered published." <div><br></div><div>When we image manuscript material here, our workflow includes deriving "ebook" records for the electronic reproductions from the original catalog record for the manuscript. Type code is currently not being changed during that workflow. Also, changing the Type code value would affect faceting in our local catalog, namely whether or not electronic reproductions of manuscripts would be retrieved alongside the originals in searches limited by the format type of manuscript.<br></div><div><br></div><div>Thanks for any advice you may have on this.</div><div><br></div><div>Matt</div><div><br></div><div>-- <br><div dir="ltr" class="gmail-m_-5380563869222016122gmail_signature"><div dir="ltr"><div><div dir="ltr">Matthew C. Haugen<br>Rare Book Cataloger<br>Columbia University Libraries</div><div dir="ltr">E-mail: <a href="mailto:matthew.haugen@columbia.edu" target="_blank">matthew.haugen@columbia.edu</a><br>Phone: 212-851-2451<br>Pronouns: he/him/his<br></div></div></div></div></div></div></div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Matthew C. Haugen<br>Rare Book Cataloger | Columbia University Libraries<br><a href="mailto:matthew.haugen@columbia.edu" target="_blank">matthew.haugen@columbia.edu</a> | 212-851-2451 | he/him/his<br></div></div></div></div></div></div>