Metalcutter (my assumption), the engraving is a tribute to my 12 years on Kodiak Island (ADQ).
Here is another example of working in aluminum not normally seen. This is being done in .040" aluminum to allow for more depth of sculpture and for the gold inlay. The inlay is done just as steel work but the undercuts are easily done with a scribe, the gold dead soft and mostly pressed into the cavities. Very little hammering is done so as to not stretch the aluminum plate causing warping. This is the start of a rosette for a classical guitar the theme of which will be budding life. The "bulino" work will be mostly shading on the few deer that will be on the inlays.