I have only 8 mounted figures in my collection so I've been displaying them in the same case and as a result the size differences really jump out at me. I also noticed how different the the weights were so i decided to weigh four similar figures. I believe that the figures are (R-L) hollow-cast lead; hollow-cast lead; hollow-cast new metal; hollow-cast new -metal. The two on the right lack any id. but I'm sure that they re Britains. The measurements are from the top of the base to the top of the helmet. It's just something that I found interesting.