The Netted Edging, found on pages 27 and 28 of The Priscilla Netting Book (with Belle Robinson as editor and published in 1914), was made for circular netting. It took a couple of tries to get a non-circular version that looked decent.
After working a little here and a little there for over a month, I finally finished Whirl. I've finished re-doing all the quick and easy doilies. We'll see how long it takes before I get the next one done.
Whirl is about 14 inches in diameter and has 4,524 knots.