Well that's what I would think. Like on Vienna sausage cans, etc...all made during 'modern' times. I didn't know non-aluminum pull tabs were even made. But...apparently so....even today...on Swanson's chicken broth cans...or so I'm told (a magnet sticks to them). -----Original Message----- From: HISTORICAL ARCHAEOLOGY [mailto:[log in to unmask]] On Behalf Of Richard Wright Sent: Monday, July 21, 2008 4:46 PM To: [log in to unmask] Subject: Re: Ring-Pulls on Food Cans The page at http://web.mit.edu/invent/iow/fraze.html implies that your ring pull is more recent than 1959. Richard