A fort is no good without the guns to protect it. I ordered a couple of Eureka naval cannons. I found the gun carriage a little small so I made my own. Comparison below, my prototype gun carriage is on the right, one of my garrision sentry figs give some idea of size.
Satisfied with the prototype gun carriage I made another seven; they are all made of cardboard with wheels made from some soft plastic rod on brass rod axles.
I painted up two and fixed on the gun barrels, as you can see they look good poking out from the fort walls ....
steam river launch - WIP
2 days ago