I wasn't sure where to put this one to be honest. Its not yet in my possession - I'm still negotiating. Being a former gunner, I found this model quite interesting. Although I am only working off the supplied pictures, it appears to be a working model of a typical Boer War or even very early WW1 type of naval gun converted to field use. It weighs just under 2Kg, the barrel is 220mm long and has a measured bore at the front of 8mm. Overall length is 280mm, width 130mm. Diameter of wheels is 100mm. Material appears to be bronze and steel.
The breech block rotates and locks in place, and the firing pin can be seen. I would suspect that the flat bar across the back of the breech block is sprung steel to activate the firing pin.
The seller thinks that it might be trench art, but I think it is too well made for that. Can anyone shed any light on it? Has anyone seen one before?