GJ.HB 1, affixed to a page dedicated by the jurors of the 1935 Buenos Aires Philatelic Exhibition to General Postmaster Risso Dominguez, and signed by the great philatelists of the period, for example: Elizabe, Marcó del Pont, Van der Wée, Julio Arata, etc., unique piece witness to a fantastic era of Argentine philately! (Image)