
The flag comes from Private Signals of the Merchants of New York, published about 1850 and reproduced in The Clipper Ships. Peter Hans van den Muijzenberg questioned whether it might instead be a Dominican Republic pilot flag. Joe McMillan considered the contemporary merchants’ chart sufficient evidence for Hubbard’s attribution. Rosanoski adds that the source shows a swallowtail, so the FOTW rendering is incorrect in outline.