320 



BOOK VIII. 



A FIRST MACHINE. B ITS STAMPS. C ITS MORTAR-BOX. D SECOND MACHINE. 

 E ITS STAMPS. F ITS MORTAR-BOX. G THIRD MACHINE. H ITS STAMPS. I ITS 



MORTAR-BOX. K FOURTH MACHINE. L ITS STAMPS. M ITS MORTAR-BOX. 





