What's kind of interesting is that one side of his "braces" is over his canteen strap. It could happen when you get busy. I'm leary of the red "long johns" shirt sleeves showing under the issue shirt. The "Union Suit" was patented in 1868.
The pose is top notch and this gunner figure is a useful addition. The hat rather than the forage cap can be seen in period images on Union artillery. The gunner with the red shirt is neat. He's not wearing the US issue shirt nor the yet to be patented "long johns." The artist for this image, Frederick Carada, was at the battle.
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