Coat of arms of Spencer

The blazon

gu, two bars ar. in chief, as many lions, rampant, of the last. — Crest, on the trunk of a tree, lying fesseways, raguly, and at the dexter end, a branch, erect, vert, a talbot, sejant, gu. eared ar, collared or.

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.