RogerZZ,
What is your objective with engraving? Guns, knives, jewelry, musical instruments, motorcycles, or the restoration of car parts?
Each one of those segments of the engraving trade requires different approaches to the work though there is a lot of overlap.
I live in Northern Kentucky and might be able to help if you want to learn something within my area of skill.
Browse through the engraving glossary to learn more about the tools, designs, and aspects of the craft. Just click the link under my signature.
That's a beautiful job on the AC
RB