Yes there were, here is the 1886 Chaix (*), you'll want page 100 for the Paris-Nice timetable
https://wikiplm.railsdautrefois.fr/wikiPLM/documents/Chaix_1896_Hiver_RS.pdf
Paris-Nice train 10, Nice-Paris train 7, 1st class only between Marseille and Paris
(*) The filename says 1896, but the...