Default terminal icon accidentally deleted! I accidentally deleted my default terminal icon and I also unintentionally replaced the Terminal.icns file in /Applications/Utilities/Terminal.app/Contents/Resources/Terminal.icns
So can anyone provide me with the original icns file? 
This not a duplicate question the other question is regarding apps not icons and I have deleted the icon not app please red the question carefully
To do so would be copyright infringement; however, you could use Pacifist to extract the files from the Sierra install app.

(disclaimer: I'm the developer of Pacifist)