1922 additive manufacturing weld-buildup on cast iron

*Welding Journal* 1922 article showing weld bead buildup on cast iron, presented as the earliest modern example of metal additive manufacturing. Tom notes cracks at the edges.

So what's the history of additive manufacturing? I found in the Welding Journal of 1922 this additive manufactured part, where people were laying weld beads down on cast iron. There are little cracks on either side of this thing, but they were essentially building up pads and doing additive manufacturing. So that's the earliest modern example. Can anyone think of an earlier example of additive manufacturing?