Coat of arms of Leman

The blazon

az. a [ 3 z ] fesse, betw. three dolphins, naiant, embowed, ar. — Crest, in a lemon tree ppr. a pelican, in her nest, or, feeding her young ppr. [Granted to John Leman, Esq. Alderman of London, 25th January, 1615.]

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.