A twelve-pounder Prussian battery for the WAS or SYW. Crews are from Foundry, horses from Front Rank and guns/limbers from Zinnfiguren. The latter are expensive but very good quality and come fully assembled although you will need to touch up the glue with super-glue.
I've pictured the limber in greater detail as nobody seems to make this amongst the more conventional wargaming companies. If you know different, please tell me. Next week I'll show an Austrian 6pdr battery.