Andrew, I didn't know about the types of filtration suitable for lithographic orthochromatic films that allow one to get a more pictorial effect.
As I have Green, Cyan and yellow filters in 67mm size for all of my Fujinon lenses, it will be very easy to have a go, all I need is to cut down some sheets, add an emulsion side notch and I could be away.
In another life, I used to do photocopying of line drawings using 4x5" and 8x10" Toyo monorails (as opposed to xerography). Processing was done using a roller transport machine and when you had ½ a dozen double dark slide film holders being unloaded and placed into the processing machine, you needed to ensure you had the emulsion side facing the right way when you loaded the film holder to start with; very, very easy to make a mistake.
Cutting a film notch worked a treat, been doing that ever since whenever we cut down lithographic film for use on anything other than in a reprographic camera. Saves pulling out a scalpel or knife to gouge the film in red light to see which side is the emulsion; I found out the hard way that not all film is shiny on the back side.
I do need some spare time though.
I will be off for a trip starting next week, returning in July. Allowing for the dust to settle and for me to develop and/or print my films, I should be good for another fun project in August/September, might have a go then.