OCLC has added Institution Records to their FirstSearch and WorldCat resource sharing services.
From the announcement by Dawn Hendricks, FirstSearch Platform Manager: “Institution Records provides additional copies of the WorldCat record, as they were cataloged by individual institutions, retaining each libraries local data and notes. This information can be valuable to researchers, and especially in reference to rare items. These local records can be presented as an additional source of information to display. Another option is to both display and also search the data in these records. The default option is to not display or search these records. Therefore, if you are interested in including this information to your service, please check out the additional information [here] and consider including this feature through the FirstSearch Admin.”