TheCodeBreakers
triumphed.. . .
When copying an instruction to the Duke [de Estrada], I
discovered little dots, like full stops, behind two signs of cipher. As
interpunction is never used in cipher of this kind, the dots could
only be signs of abbreviation. But even abbreviations (a skilful
writer would never have made use of them) offer so many
difficulties that they can be employed only on the most common
occasions, as, for instance, V. A. for Vuestra Alteza, or n.f. for
nuestra fija, or nuestro fijo. From obvious reasons [in this case], I
decided in favor of "nuestra fija," and inferred further that the
preceding signs must correspond to "princesa de Gales." The
breach was opened, and before three o'clock in the next morning I
was in possession of eighty-three signs, representing the letters of
the alphabet, and of thirty-three monosyllables, signifying words.
The key is far from being complete, but there remain no longer
annaabi.ee 
