Does anyone have any info on these interesting little all stainless knives? I saw one at the local antiques shop yesterday, and may go back and grab it today. It looks like a well made version of the little "flip-flop" knives used for advertising years ago, the handle being in two sections one pivoting over the other to hold the knife secure. Did Watts originate the design? When were they produced? Any info would be appreciated. Thanks!