Rudolf Wilke (1893-1908) and Hermann Wilke (1876-1950), brothers, German draughtsmen a. caricaturists a. for the magazines ''Jugend'', ''Simplicissim'' a. ''Ulk'', Studies of a kneeling beggar, ink brh drawing a. pencil drawing on cardboard, lower right estate stamp of Rudolf Wilke, sheet 28,2 x 37 cm, stain, mounted at upper corner in hinged passepartout, Two students in conversation, ink drawing a. charcoal with white heightening on strong paper, signed H. Wilke o. l. and lower left num. (dated?) 49, verso inscribed Wilke, 14 x 19 cm, at o. corners mounted on backing. 18 x 22,5 cm, unframed