188 BULLETIN 105, UNITED STATES NATIONAL MUSEUM. 



DIE PROOFS. 

 Bureau op Engraving and Printing. 

 1906-1911: 



2 centavos dark green.* 



4 centavos aniline carmine.* 



6 centavos dark violet.* 



8 centavos brown.* 

 10 centavos dark blue.* 

 12 centavos lake brown.* 

 16 centavos violet black.* 

 20 centavos reddish brown.* 

 26 centavos dark violet brown.* 

 30 centavos olive.* 



1 peso orange.* 



2 pesos black.* 



4 pesos dark blue.* 

 10 pesos deep green.* 



India paper, mounted on card with sunken mount size of die. 



1915: 



Special printing for San Francisco Exposition. 



2 centavos deep green.* 



4 centavos carmine.* 



6 centavos deep violet.* 



8 centavos yellow brown.* 

 10 centavos dark blue.* 

 12 centavos lake.* 

 16 centavos violet black.* 

 20 centavos orange brown.* 

 26 centavos dark violet brown.* 

 30 centavos olive.* 



1 peso orange.* 



2 pesos black.* 



4 pesos dark blue.* 

 10 pesos deep green.* 

 India paper, cut down to one-eighth inch margins. 



1909-1915: 



Special printing for San Francisco Exposition. 



12 centavos red orange.* 

 16 centavos yellow olive.* 

 20 centavos yellow orange.* 

 26 centavos sea green.* 

 30 centavos bright blue.* 

 30 centavos gray.* 



1 peso bright lilac* 



2 pesos purple brown.* 



India paper, cut down to one-eighth inch^margins. 



