That looks like a pretty straight forward threading pattern. Have you tried threading it? As far as the ZZ goes, drip some oil on the gears and turn the wheel by hand. I recently bought a Universal from the 50s and thought the ZZ was frozen - no, there was an extra lever that needed to be moved to initate the ZZ mechanism. Now if I can get someone to put on a new cord, I'll be as happy as you are. I bought Hoppe's gun oil to use to free up mine before I found the lever. I've heard Koil is good, too.
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Last edited by irishrose; 11-30-2011 at 08:19 AM.