It means it is located in the Lincolnshire Collection on the first floor of the Library.
We primarily use Dewey Decimal Classification in the Library, but in the Lincolnshire Collection resources are classified using a system called Bliss classification. Bliss shelfmarks are usually three to four letters long and are arranged on the shelves, by shelfmark, in alphabetical order (so the sequence starts at A and ends at Z). There is detailed guiding at the top of each shelving bay. Please ask if you need help locating a particular resource.
