The “falchion”, or “faucheon”, is a slashing sword with a curved single-edged blade. It’s a period charge, found in the canting arms of di Folcion, mid-15th C. [Triv 150], and maintained by one of the supporters of the Worshipful Company of Fishmongers, 1575 [Bromley & Child 93]. Cf. scimitar.
Guy de Falchion bears: Azure, three falchions Or, on a chief argent three crosses crosslet gules.
Mustafa Kamaal of Antioch bears: Vert, a falchion inverted between in chief two cat’s eyes argent.