Confederate Williams rapid-fire cannon

[DutchmanDick]

Does anybody out there know where I can find some good, detailed info on the Williams rapid-fire 1.5" (1-pounder) cannon that was used by the Confederacy? I'd like to try to build one at some point, but the few photos I've seen don't give me enough information on things like mechanism details (other than it has an operating crank on the right and a laterally moving "mule-ear lock" like hammer and musket-cap nipple on the left). Be kind of neat to have one of these...

 

[RaiderANV]

You'd have a better time finding that which ye seek over at this website:

www.n-ssa.org

There have been a couple of Williams guns fire at the N-SSA over the years. Thinking one was original and the other home built and looked original. I'm sure someone there will get you the plans ye seek

 

[4v50 Gary]

Doesn't Gettysburg Battlefield Park have one of those in their collection?