Call number and Pressmark

Call number noun - A mark consisting of characters written on a book; used to indicate shelf location.

Pressmark is a synonym for call number in number assigned to a book topic. In some cases you can use "Pressmark" instead a noun phrase "Call number".

Pressmark noun - A mark consisting of characters written on a book; used to indicate shelf location.

Call number is a synonym for pressmark. You can use "Call number" instead a noun "Pressmark".