Damask linen with insignia

I found this tablecloth(?) at a local thrift store; wondering if it is damask linen. It is 102 x 106 inches, unseamed, and has two 6" embroidered ovals in the center, with an eagle atop a crown, and the saying"Esse quam videri".
I am thinking this is a family crest, but have not been successful in my research.
Does this look like Irish linen? It is very smooth and silky, and cool to the touch.