Plind,
A little more information on the reproduction fluted lens with script at top:
They were made in the early 70's, the mold was made from a original lens and it cost the man $1000.oo for the mold, each lens he had made was an additional cost, the lens are made of pyrex glass just like the originals, the mold no longer exists. According to Al Lepore, some years ago, a mold today would run around $10,000.oo.
If you find a need for additional sets, after getting the set Dean has made available to you, you can contact me as I have some additional sets available.
I just showed my Dec. 1927 Very Early A in fine point judging at the MARC National in San Diego, the lens went through with flying colors.
Ron