https://www.google.com/search?sclient=psy-ab&btnG=Search&q=antique+mason+jar+lifting+tongs+pics

They are certainly unique,, unless there is a patent number or name the best you can do is look through the listings above and keep your fingers crossed !! There have been many variations of canning tongs over the years !! Ebay is another good place to check !! The page above has one entry about wire tongs and that sounds similar to yours !! You might check that !!