Not sure, but could this be a combo switch for an early enduro.
I hope I am not upsetting anybody by pointing the item out, but nobody has bid on it (2 days to go)and the description shows it listed as a moped part.
ebay listing
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2443333767&category=9903
picture
http://i12.ebayimg.com/02/i/00/e9/d2/91_1.JPG
Yeap, that switch is installed on my bike.
74 250 harescrambler.