Very nice shield Bill,
I've noticed that on eBay recently there have been a number of 'Toposa' / 'Turkana' type shields that are very similar to yours. Yours seems to have a nice 'solid' look about it. I have also seen some examples for sale made from sheet metal, as Freddy has already mentioned. Unfortunately, both examples where severly dented and looked in poor condition.
Not so certain the 'smaller shield' with Washington's portrait would offer much protection....
Tim, I love the design of the spearhead, you can see how the design provides 'lightness' ,with strength provided by the the ribs. Saving the amount of steel/iron used but, requiring greater skill and time to produce.