Our patrons can find some pretty unique items through the GTI records in Primo, especially as more libraries place archival records in their catalogs. However, they expect to be able to request these items via interlibrary loan, and without any way to tell whose catalog the record originated from we are having trouble finding items which are listed in the GTI but not listed in OCLC’s Worldcat. We would like the original source of GTI records to be accessible to resource sharing staff on the backend. If there are more than three sources for a given record, only three can be listed. That way, we can contact the owning libraries of these materials about gaining access to the material for our patrons without having to guess whose collection they might have come from.