These records represent 2 title variants of the Sitzungsberichte ...
of the Kaiserl. Akademie der Wissenschaften. Philosophische-
Historische Classe.  Record #1478738 cites the title as:
Sitzungsberichte der kaiserlichen Akademie der Wissenschaften.
Philosophisch-Historische Classe and covers 1848-1880.
Record #8742312 cites the title as: Sitzungsberichte der
Philosophisch-Historischen Classe der kaiserlichen Akademie der
Wissenschaften and covers 1881-191u (the title would have changed in
1917 or 1918)
    We have bound volumes (no covers) from 1848-1886.  The vols. for
1848-1880 have 2 facing title pages: that on the left has the title
as cited in record #1478738; that on the right has the title as cited
in record #8742312.  The vols. for 1881-1886 have the right-hand title
page only.  What this means the title page with the title cited in
record #8742312 is contant from 1848-1886 (and presumably beyond)
Why are there 2 records on OCLC?

Charles Tremper
Head, serials unit
Syracuse University Library
email: cftrempe@hawk.syr.edu