I took this picture to document the difference in the two varieties of garlic I planted this year. Note that each square of the grid = 1".
The one on the left is German Hardy, and the one on the right is Red Russian. The German variety is obviously smaller, although the cloves are comparable in size. The Russian variety has more cloves -- 6 or 7, compared to the usual 4 (sometimes 5) in the German variety.