Bill, there are the pictures of my example. My pin will not raise to scan the maker mark unobscured. We so far have three different reverse set ups. Andy's example would appear to be a set up for a zinc alloy base metal badge.
My example conforms to accepted originals with a non zinc alloy base metal.
The only rule of thumb for repro's. that I recall is the second from last row of portholes should number seven total on original examples.
I do not believe that in line lettering on the makers mark is a good sign.
Check my example the R's and L's especially are not in alinement.
As time allows will do some further research.
--dj--Joe