LC Call Numbers - Dot Space Letter

What is this?

One pattern that can show up in LC call numbers in catalogs is a dot followed by a space followed by an uppercase letter, like this:

  • TL509. B67 1972
  • D659.F8. S6
  • GN419.15 . D46 2007

Why is this trouble?

This is usually just slightly messy but may cause inconsistency in labeling and confusion in shelving, like this: 

GN       GN
419.15   419.15
.D46     .
2007     D46
         2007

Exceptions

Some types of enumeration or notation might create fine call numbers matching this pattern:

  • Z689.5.U6 A23 2002 Spec. Issue
  • JX1971.5 .A6 ser. A
  • M1015 .P2 Cmaj. D8 1974

How to Find

If you are in Alma, there is an analysis to search for this issue in the "Looking for Trouble" folder. Go to the "LC Call Numbers" folder and look for the "Dot Space Letter" analysis.

If you can search or filter your call numbers by regular expression, use the expression /\. [A-Z]/.