Coat of arms of Spicer

The blazon

sa. a chev. erminois, betw. three towers, triple-towered, or. — Crest, out of a viscount s coronet ppr. a cubit arm, habited and gloved of the first, holding a fire-ball Spicerf [Exeter, Devonshire,] per pale, gu. and sa. three castles, in bend, or, cottised, within a bordure, engr. erm.

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.