Here are some shots of an ancient naval battle that Peter J. and I are currently waging - Rome Vs Successor State. The models are from my growing collection of 1:600 ships by Xyston. The rules have the working title Fleet of Battle and like Ager Sanguinis have their root in Piquet's Field of Battle by Brent Oman. The rules have been on and off the burner for a few years in various guises and have now reached the 'mechanics finished' stage of development and give a very good game. I am in the early discussion stages (I'm hopeful but no promises) of making them widely available in a complete form - I will keep you informed if anything comes of them.
The beads of various types display navy and squadron (black/red striped white, A, B, C, etc.), yellow spots are squadron flagships, green spots indicate that the vessel is mounting large catapults, red beads are hull damage, white beads indicate crew/morale loss and black beads indicate that the ship is holed, the sea coins show ships are locked together; this naval game does not require roster sheets of any kind - which is unusual for naval games - and allows everything to be determined at a glance, which speeds up play.