Richard,
Well said! Most people, for some reason, do not know #1 applies. I tell my customers this all the time. If you are going to let the trophy shop/jeweler/whoever engrave the item, you must remain with them unless they are licensed. If they do take it somewhere like that, I write down on a piece of paper the minimum requirements to discuss with the engraver. I still see lots of people marking their PS90s under the charging handle.
Bill