I don't know but there is a previous post where a member got one for $50, so the short answer is no, but I would say that they are rare. Interestingly today I spied a Whirlwind edger for $80 in a consignment sellers warehouse. It was a two stroke but interestingly it's design was very similar to the SB 38, which beggars the question, did SB copy the Whirlwind? The blade setup is interesting in that they are short blades attached to a flat bar, which allows the blade to give if it strikes a hard object.
