Hi Hans,Normally there weren't any canons in the stern. The ports where carved and functional, but only used for canons as the ship was chased by an enemy. In such a case one or two canons from the sides were rolled to the back and fired to give the chasing ship a warning ( if necessary) that the "prey" was armed.
Hans
Thank you for the response. That makes a lot of sense. I think I will go with just the doors to hint what might be behind them. I don't fancy cutting into the frame or into the planking that I just finished.
Jan