Actually, I think my previous statements about ortho/pan film differences are wrong. (Forgive me, Ortho film was obsolete way before I got into photography, so I only heard about it, never used it). Ortho film is IN-sensitive to red, so on the negative, it would NOT turn dark. (Emulsion turns dark only in the presence of light it is sensitive to, so ortho film can be developed with a dim red safelight on and not be affected.) When printed to paper, light/dark is reversed; light areas print dark and vice-versa, so a light neg (was red) would print dark.
In Panchromatic film, the film emulsion would be more sensitive to red light, and the film would turn darker than ortho. When printed to paper, a dark neg (was red) would print light.
In fact, the “illogical” interpretation of the red end of the spectrum was one reason ortho film gave way to pan.
So, in the final print, a red dress on ortho film = dark
A red dress on pan film = light
Which shows how important it is to know what kind of film was used, or to avoid the 1906-1920 ambiguous era.