Something I had never noticed before:
On the
Scouting NY website, there is a post from "Walter" on January 7, 2014 that says:
The Luna restaurant you refer to was at 112 Mulberry Street. I ate there many times as a kid. Some of the deleted scenes from the movie you can see on the DVD show the exterior clearly. This was the place was where Peter Clemenza had lunch. It was also the place where Clemenza bought the cannoli that was in his famous line of Leave the gun, take the cannoli.Very interesting. This is the only reference I can find (so far) that names the location of the Luna Restaurant by someone who actually claims to have eaten there and knew the specific location. And remember, we're talking about where Clemenza ate in the deleted scene, not Louis' Italian-American Restaurant in the Bronx.
Signor V.