Kent,
Wonderful examples of great old files.
sadly I don't think Heller, Simonds,or Nicholson are made in the USA anymore. The last Nicholson I purchased was made in Mexico.
Simons... India I think
I have not seen a Heller or Delta in ages.
When I was interested and trying my hand at custom gunstock making I acquired some nice wood working files out of Germany but that source is long gone.