[Eliot Ness]

Or a fairly common RCA 100A, Peerless or almost any number of speakers from the late 20's.

The gentleman Mike mentions is Buford Chidester who specializes in reproduction speaker cones from about 1925 - 28, and his book is called Classic Cones:

http://www.amazon.com/Buford-Chidester/e/B001K8150A

He and his wife are very nice and always have a booth at Kutztown just down the aisle from us where they also sell their book.