Original blazon: Az. encircled by a snake or two hands conjoined in fesse couped above the wrist ppr. on a chief embattled of the second an hour glass sa. betw. two wings expanded of the field.
Crest: A snake nowed the head debruised towards the sinister thereon a dove ppr. Beaked and legged gu. from the beak an escroll with the motto Prudens Simplicitas.
Motto: Beneath the arms, Esto perpetua.
(Incorporated by Royal Charter of Queen Anne, 1706).
Source: Burke's General Armory (1884)