FOLLOWER OF REMBRANDT VAN RIJN (1606-1659), DUTCH“PHILOSOPH” (PHILOSOPHER) (AFTER THE SEPIA DRAWING “OLD MAN WITH CLASPED HANDS, SEATED IN AN ARMCHAIR”)Oil on oak panel; an indistinctly handwritten and indistinctly signed statement dated “1897” affixed to the verso, an unknown red wax Serbian seal d