Folded letter endorsed 'Per "Camilla" July 13th' in manuscript on front with good strike of 'Crowned' PAID AT RIO DE JANEIRO cancel in black (SG CC3) and fine strike of RIO DE JANEIRO British P.O. cds in black on reverse dated JY 12 1856. Addressed to BUENOS AIRES and rated '2/-' in red manuscript and with additional manuscript '14' all on front. A rare cover especially addressed within South America.