Coat of arms of Tadwell

The blazon

ar. a fesse, engr. sa. fretty or, betw. three mullets of the second, pierced of the field. — Crest, on a wreath, a piece of battlement ar. issuant thereout an armed arm, embowed, ppr. garnished or, in the hand ppr. a javelin of the last. [Granted to John Tadwell, of St. Maryle-hone, Middlesex, 14tA September, 1768.]

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.