Coat of arms of Osmer

The blazon

ar. on a pale three wings, conjoined — Crest, a buck s head, cabossed, ppr. OSMERDALE, OSMUNDERLE, OSMOTHERLOW, or OsMONDERLEY, [Cumberland and York,] ar. a fesse, engr. betw. three martlets sa. ( Another bears the fesse plain.)

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.