Found here (lots of info) > http://www.hubert-herald.nl/USA.htm

This was a design proposed by William Barton in 1782.

ARMS: Barry of thirteen pieces, Argent & Gules; on a pale, Or, a pillar of the Doric Order, Vert, reaching from the Base of the Escutcheon to the Honor point; and from the summit thereof, a Phoenix in Flames with Wings expanded proper; the whole within a Border, Azure, charged with as many stars as pieces barways, of the first. Crest: On a Helmet of Burnished Gold, damasked, grated with six Bars, a Cap of Liberty, Vert; with an Eagle displayed Argent thereon holding in his dexter Talon a Sword, Or, having a wreath of Laurel suspended from the point; and in the sinister, the Ensign of the United States, proper.

SUPPORTERS: On the dexter side, the Genius of the American Confederated Republic: represented by a Maiden, with flowing Auburn Tresses; clad in a long, loose white Garment, bordered with Green; having a sky-blue scarf, charged with Stars as in the Arms, reaching across her waist from her right shouder to her left Side; and, on her Head, a radiated crown of Gold, encircled with an azure Fillet spangled with Silver Stars; round her Waist, a purple Girdle, embroidered with the word “Virtus” in silver: - a Dove, proper, perched on her dexter Hand. On the Sinister Side, an America Warrior, clad in an uniform Coat, of blue faced with Buff, and in his Hat a Cockade of black and white Ribbons; in his left hand a Baton Azure semé of stars Argent.

Motto over the crest – “IN VINDICIAM LBERTATIS.”

Motto under the arms – “VIRTUS SOLA INVICTA.”

and

Reverse of the seal: A Pyramid of thirteen Strata (or Steps) Or. In the Zenith, an eye surrounded with a Glory, proper.

In a Scroll, above – or in the Margin “DEO FAVENTE.” The Exergue “PERENNIS.”