People are only just realising why they get letters with 'P' handwritten on front If you've ever received an envelope, addressed to you, with a handwritten letter P on it, you might be confused.

Many of us who receive letters in the post might sometimes notice various scribbles on the front of them. One of the most common is a letter 'P'.

Many of us who receive letters in the post might sometimes notice various scribbles on the front of them. One of the most common is a letter 'P'. The reason behind it has now been explained - and ...