In the Catalog on FamilySearch, the term "call number" refers specifically to numbers on books, maps, periodicals, and other printed materials. The identification numbers for microfilms are called film numbers. Digital records have an Image Group Number (DGS).
Books, maps, periodicals, and other printed materials at the FamilySearch Library do not circulate to other facilities.
Call numbers are based on the Dewey Decimal Classification. The FamilySearch Library uses a modification of the Dewey Decimal Classification for items about a place or for records from a place.
For example, the call number could be 944.22 R2s. 944.22 represents the Calvados department of France. R2 indicates that the topic is land and property. The "s" separates this item from other items about the same topic.
On a book label, most call numbers are on 2 or more lines. The first 2 lines provide the information that allows you to find the book on the shelves. The other lines indicate versions and copies of the work.
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