Jean-David Beyer wrote:

They did; it was Kodak Ektar 25, only in 35mm. I asked their salesman at
a photo show when they would be making the stuff in 4x5 hand he said
never. He said that Vericolor whatever was sharp enough for that.

I am confused. I thought Vericolor sheet film was discontinued.

I have a box of some Vericolor once used to make transparencies of
negatives. It's so out of date I wonder why I let it take space in the
deep freeze.