1980-D Quarter Die Break On Reverse

I believe it's just a Die Crack and not a Die Break.

Ah yes, thanks for teaching me this!

This is what I read on Wikipedia under Mint Made Errors. Did not post the link per advise to newbies to CCF.

Die cracks, die breaks, and die chips

Dies can crack during use producing jaggeds, raised lines on the surface of subsequently struck coins. In U.S. coinage, many Morgan dollar coins show slight die cracks. Dies with cracks, especially those with cracks near the edge, sometimes break. The broken piece may be retained in position or fall away. Die cracks and retained die breaks can be difficult to distinguish. Retained die breaks cross the coin's face from rim to rim with the area to one side of the break being slightly higher than the other. Coins struck after the break falls away have a raised, rounded, unstruck area along the edge. These coins are known to collectors as Cuds. Sometimes, an area of a die will chip out of the center. These so-called die chips appear on subsequently struck coins as raised, rounded, unstruck areas called die chips.

Oh, Whew! I didn't post a link. That was a feature of CCF. Sorry for going on but I truly value this site and want to become a valued member!