THIS LISTING IS FOR A VINTAGE POLISHED BRONZE/BRASS?, BLACK POWDER SIGNAL CANNON, THIS IS JUST A NOISEMAKER, NOT FOR SHOOTING PROJECTILES. THE WHEELS ARE APROX 2" DIAMETER, IT IS APROX 5 1/2" LONG WITH THE CARRIAGE, THE BARREL IS APROX. 5 1/4" LONG AND HAS AN APROX 3/8" BORE AND IS SOLID BRASS, AND THE CARRIAGE AND WHEELS ARE ALSO BRASS. 

THE UNDERCARRIAGE IS NICELY ENGRAVED "VALLEY CANNON WORKS TIGARD, OREGON. SERIAL NO. 518". A BEAUTIFULLY CRAFTED CANNON, NICELY CAST, LOOKS LIKE SOMETHING A JEWLER WOULD CRAFT. 

I ALWAYS FIRE THE CANNONS I SELL SO YOU CAN BE SURE THEY ARE CAPABLE OF FIRING, I USUALLY OVERLOAD THEM A BIT TO MAKE SURE THEY ARE STRONG.

WE HAD A SIGNAL CANNON ON OUR LAST OLD SAILBOAT AND THE GRANDKIDS LOVED FIRING IT, GETS EVERYONES ATTENTION, FUN FOR THE 4TH OF JULY AND NEW YEARS AND JUST TO MAKE SOME NOISE!

SEE VIDEO AND PHOTOS SHOWING IT MAKING NOISE, IT MAKES A LOUD, THUNDEROUS BOOM!! VERY COOL.