In the mid 1200’s, lords and knights began using armorial bearings to identify friend from foe on the battlefield. The custom developed into heraldry which has a complex set of rules that varies country from country.
In the heraldic traditions of England and Scotland, an individual, rather than a family, was granted a coat-of-arms. In those traditions, coats-of-arms are legal property transmitted from father to oldest son.
PLEASE KNOW THIS
There is no record of any Mashburn ever receiving a title to a coat-of-arms. Any Mashburn Coat of Arms that you may see for sale is bogus. There are offered by several commercial operations and are NOT legitimate heraldry.
There is no “official” Mashburn coat-of-arms – these companies are simply trying to make money off of your interest and pride in your family heritage.
Before you spend your money, be sure to read this article in Genealogy Today: Coats of Arms: An Even Bigger Pitfall