Burt Co had 1 strict policy.
They did not hot stamp chips for anyone. They felt it was too easy to counterfeit HS chips.

"TCR has 145 different NV zigzag chips."

I don't know how many are initial only chips, but with a little looking into I bet 50% can be disputed. People love to put names to initial chips and sell them.

"room for hot stamping of chips"
It is a small machine. Could be done on a kitchen table.

"Do you know if Noll & Co. aka Noll, Inc. receive chips of a different mold?"

No clue what they bought. You will have to wait for the Burt records to become available. They will eventually come out. I had access to a lot of arrowdie info when I wrote the article.