It's snowing hard here today, so I have been happily dug in downstairs avoiding other obligations and experimenting. Here is an image of a dome for a box I started this morning. It is 29g 82/18 reticulation silver [i.e. Hauser and Miller's alloy]. It's about 3" across and 1.75" high. This alloy is not very cooperative, but I have a Big Hammer and take no guff.
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[ reticdome1x.jpg ]