Looking up Kodak Ektachrome films: Ektachrome E-1391 is available in 120/220 formats. There's also Ektachrome 44 (E-44), which is a black and white film. Hmm, perhaps the user is mixing up the types. Alternatively, maybe there's a version called E-44 or another film with similar numbering. Alternatively, maybe there's confusion between different manufacturers. Agfa or Fuji might have models with such numbers. For example, Agfa Ektar or Fuji Pro 400H, but those don't have 1391 or 44 in the model number.
or a particular version of the film found in secondary archives. The "Better" Tag: color climax film nr 1391 44 better
, a Danish media company founded in 1967 known for producing early European pornography Catalog Identification Media Type Looking up Kodak Ektachrome films: Ektachrome E-1391 is