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 1892 Zárate paper, controll mark, sad sun, 2 or 3 different diameters 
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 1896-1911 German paper with watermark smiling sun and straight rays, symmetrical paper wire, density 30/20 
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 1908-1911 German paper - smiling sun with wavy rays, symmetrical paper wire, density 30/20 
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 1911 German paper with watermark smiling sun and straight rays, symmetrical paper wire, density 24/22 
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 1911 Sun without face 
 
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