Unfortunately, today the originals are usually found broken. Mine is no exception; the long sleek contoured handle is broken right off and needs to be replaced.
In another great stroke of luck, tonight I found a new old stock H-20-2 handle on eBay in mint condition. It had "Buy it Now" on it, so I snapped it up. The seller said it was left over from his vintage trailer business.

Bargman H-20-2 Handle (Price Delivered: $132.95)