No ascendant, no chart. Besides, Jupiter is configured with both and Mercury is visible, also Saturn and Mercury are to a certain degree harmonious, especially due to the strong aspect of Jupiter.
''Saturn and Mercury are allies and productive of activities/employment. They do, however, bring slanders about religion, lawsuits, and debts, as well as disturbances about written matters and money. On the other hand, these stars make men who are not without resources and not unintelligent, with much experience and awareness, and who are curious, far-seeing scholars, seekers after mystic lore, revering the gods, but with much on their consciences'' - Vettius Valens on the conjunction of Saturn and Mercury, trans. Riley