Bombards ... they call them

[fernando]

These two are taged as bombards, said to be mounted in articulated devices, but i guess they are more fit to be upright signal mortars, specially because those well defined bases.
One is in bronze, the other in iron. They have similar reduced dimensions, less than 10X10 centimeters.
The one in bronze, dated XV century, has that traditional lip on the fire hole, so often seen in vertical signal mortars.
The one in iron is dated XVI century. It has a much narrower bore.
Bore measure not mentioned in either example, though.
What do you Gentlemen make of the bombard definition, as well as the date atribution ?
Coments will be apreciated.
Fernando