Jim, Harvey et al..
the swedish Crescent one piece crank was made by a firm by name of Faber. They were once very common here, I have always thought they were german, but really don´t know and have not seen them on new bikes (they are in big numbers on old). Google and Sheldon left me clueless.
Olof Stroh in Uppsala Sweden who has not had socks on his feet since june! Here!