[antir-heralds] gyronny escutcheon

[Ursula Georges]

A client is interested in a device incorporating an inescutcheon with 
"Gyronny Or and gules a bordure sable".  The Glossary says that a 
"Multiply charged single inescutcheon" is reserved for augmentations or 
arms of pretense.  But this inescutcheon isn't multiply charged; it has 
a single charge, the bordure, and a divided field.  May it therefore be 
used without implying an augmentation?  If so, is it a colour for 
purposes of contrast?

Ursula Georges.