It has been my great fortune to have good friends who keep an eye out for me and help me add great toys to my collection. Robert Howard of the Hagley Museum is one such friend. It is with his help that the Dayton #210 is here. Thanks Rob!
Here is the Dayton #210 Howitzer. It is a very rare carbide cannon. I don't think many were made since it took so long to find an example. I believe that James Wily, inventor of the Big-Bang cannon bullied then bought out any and all competition. Alex, the toy soldier, is 3 7/16" tall.
Here are two views of the bottom. One with the sump in place and one with the sump removed.
Here is a view with into the breech with the cover open, magazine screw removed and hammer cocked.
Bars cast into the muzzle prevented children from charging the cannon with projectiles.
Here is the Dayton #210 and a Big-Bang 16F side-by-side for comparison. The Dayton is a contender!