What are the numbers that appear alongside each stamp at Online Catalogue?
Each stamp in the catalogue is identified by a unique reference number – its Stanley Gibbons number. However, if a particular stamp happens to be illustrated in the catalogue, then it will also be assigned a separate number as well, known as the Type Number. This is not a unique number, as some stamps may share the same Type Number. In other words, the Type Number is used to indicate a group of stamps which all share great similarities in their general design. An easy way to distinguish between the two numbers is that the Stanley Gibbons number appears first in standard type face and the Type Number follows in bold type face.
