Manu propria

 (Latin for '[signed] with one's own hand'), abbreviated to m.p. or mppria is a phrase sometimes used at the end of typewritten or printed documents when there is no handwritten signature. It is typically found just after the name(s) of the person(s) who would have signed the document if it had not been printed or typewritten.
It is also found in several ancient documents in front of or after the writer's signature at the end of the document.
History.
Richly decorated "manu propria" signs were frequently used by medieval dignitaries and literates to verify the authenticity of handwritten documents.
"mppria" was commonly used in the 18th century. However, it was not only used for Latin documents.
Later, official documents were routinely accompanied with this abbreviation, for example declaration of war on Serbia by Emperor Franz Joseph from 1914 ends with "m.p.".
Usage today.
Ordinary personal cheques frequently include the abbreviation at the end of the signature line.
Some of the countries that still regularly use "manu propria" include: