1930

Paraguay 1930 Diamond Green

1930

Paraguay 1930 Diamond Mauve

1930

Paraguay 1930 Diamond Red

1932 

Zepplin Blue

1932

Zepplin Green

1932

Zepplin Orange Brown

1932 

Zepplin Purple

1932

Zepplin Violet

1935

Tobacco 1

1935

Tobacco 2

1935 

Tobacco 3

1965

Copernicus

1965

Copernicus 2

1965

Einstein 1

1965

Einstein 2

1965

Galileo

1965

Galileo 2

1965

Newton

1965

Newton 2

1965 

Paraguay 1

1965

Paraguay 2

1965

Paraguay 3

1965

Paraguay 4

1965

Paraguay 5