Found this in my change a couple weeks ago. I was just wondering how well known it was or where to go for more info.
I know die cracks are common, but I think they are cool. The place I use for varieties is http://www.lincolncentresource.com/. Either that I just google 1997 lincoln die crack and see what comes up. I really do not worry about die cracks, but I just pop 'em in airtite and set it on my desk.
You made me go back and look at it under more magnification.I see it now,but a gas bubble never crossed my mind. I never saw any others even close to this long.I scanned it to get better resolution(I have a old camera).