What is the number 2 on a 2 Pencil mean?

In many parts of the world, including the United Kingdom, Canada, Australia, New Zealand, Russia and the rest of Europe the name is used for the sign "№", which is Unicode U+2116 and does not appear in ASCII. It is often written simply as No. or using a superscript No. Unicode calls this sign the Numero sign to avoid confusion. Note that in these contexts, the # sign is not used to indicate a number or numerical value.