Whitewashed picket fence, Pleasant Street, Nantucket, Massachusetts, 1969, by Jack E. Boucher for Nantucket Historical Study, HABS, via Library of Congress Prints and Photographs Division (both photos).

Is there a name for this style of picket fence — with three to four saw-tooths (saw-teeth?) on each wide board? I feel like there must be, but I can’t find it.