The Convention of The Baronage of Scotland 
Supporters
The conditions under which supporters are granted have changed over the years; today they are usually reserved for the holders of the older baronies (chartered before 1587) and those which have been in continuous family ownership, although there seem to be exceptions to every rule.In England, supporters are reserved for the peerage, and if a Scottish baron approaches the College of Heralds for English arms, he will not be allowed supporters.
Unfortunately many barons, being conscious of the value of 'siller' chose not to apply for supporters on the grounds of cost. As can be seen, supporters increase the fee substantially.
The statutory fees charged by the Court of the Lord Lyon is subject to periodic increase by H. M. Treasury.
A summary of the present fees and a fine example of supporters can be seen on the Lyon Court page here.
