Glad you have the full specs Janet! I know how detailed they can be.
I have to apologize for not reading the google listings more
carefully yesterday. The ones I found for brass memorial markers
turned out to be those directory kind of sites that list every
possible variation on a theme… and the only actual brass products
turned out to be small plaques or signs, or pet memorials, but no
full-size grave markers in brass.
What I meant was the border design is a standard fixed design. The
only additions possible are the lettering, and occasionally a small
symbol (from their catalog) that can go between the dates. I have
never seen them made. No idea how it’s done… I’ve only worked with
taking the orders from the family and transmitting it to the bronze
company, and checking the order to make sure everything was correct.
But think mass production, not individual details…
(I’ll send you a link to a Youtube video of a plaque being cast so
you can see the general procedure. )
As far as why brass is used for wall plaques and signs… my best
guess is the shiny appearance of polished brass background with
engraving is preferred to the finish of cast bronze memorials where
only the raised portions are polished.
That’s about all I can help with!