Limber for 4 or 6 horses, suitable for the two Russian field guns.
For horses, use Limber horses (H-1).
Below, a schematic drawing from Greene, Russian Campaigns in Turkey 1877-1878. Green says the Russians had a habit of making the traces so long that they caught in the horses feet when standing still.
The limber and the A-8 Russian 4lb gun
The limber with a six-horse team