|From Flash Comics #97, art by Carmine Infantino.
Disclaimer: While reading my copy of The Black Canary Archives Volume 1, I discovered the ridiculous trend that Dinah got knocked unconscious every single issue. Now, I've been knocked cold before, and that $#@% is really dangerous. Kanigher and Infantino either didn't realize how unhealthy it was, or they didn't care, because Black Canary would have been reduced to a drooling vegetable by her third solo adventure.
I dedicate a regular blog update to the panels showing these injuries to spotlight the ridiculousness and repetitiveness--and laziness--of the kind of storytelling common during this era of comic book publishing. In no conceivable way do I endorse any sort of violence against women (or men).