The main device (symbol) in the Porcher blazon is the cinquefoil. The two main tinctures (colors) are gules and argent.
The bold red colour on a heraldic shield is known as gules. It has a long history within heraldry, it is known that one of those who besieged the scottish castle of Carlaverock in 1300 was the French knight Euremions de la Brette who had as his arms a simple red shield.1. The word gules is thought to come from the Arabic gule, or “red rose” 2. Later writers associated it with the precious stone ruby and the metal iron 3, perhaps because of the red glow of iron in the heat of the blacksmith’s forge.
Argent is the heraldic metal Silver and is usually shown as very pure white. It is also known more poetically as pearl, moon (or luna) 4. In a sketch or drawing it is represented by plain, unmarked paper 5.
Natural objects abound in heraldry, and one category that gives especial delight are the many flowers and flowering plants that frequently occur 6. The cinquefoil is also of this type, being drawn, at least a little, realistically and often to very pleasing effect. It is shown as five-petalled flower, each petal quite rounded but with a distinct tip. It is sometimes pierced with a hole in the centre and usually appears on its own, without any leaves. 7 It has no fixed colour but can appear in any of the available heraldic tinctures.