Coat of arms of Roome

The blazon

ar. a fesse pean, in chief a lion, passant, gu. — Crest, a dexter arm, embowed, habited az. charged with two bars ar. holding in the hand ppr. a caduceus of the last. [Granted to Roome, of Newport, in America, 21 July, 1772.]

A blazon is the description of a coat of arms in the technical language of heraldry. The drawing comes from that text, and from nothing else.