What a wonderfully complex tracing board from the Kloss / von Löwen collection! The description says: “Philosophes Inconnu, Tableau des Apprentifs”, or ‘Unknown Philosophers, tableau for the Apprentices’, thus suggesting that “Philosophes Inconnu” is a system with at least an EA degree. In an unconventional circular design we find mostly common symbols.
Collection (1844) of Georg Kloss (1787-1854) (Collection de 84 tableaux, Kl.MS:XXV.1)