Came across this one, they claim it is really rare.
http://cgi.ebay.com/56cc-STIHL-S10-CHAINSAW-VINTAGE-1960s-GERMANY-/170557031246?pt=US_Chainsaws&hash=item27b5fdc34e
http://cgi.ebay.com/56cc-STIHL-S10-CHAINSAW-VINTAGE-1960s-GERMANY-/170557031246?pt=US_Chainsaws&hash=item27b5fdc34e