It was published again in 1979, now with the title Tailor's Pattern Book (ISBN 0-903585-31-6). The book is part facsimile, part translations and comments.
The book contains a pattern for a "Ropa de Letrado", which is translated to "a learned man's gown". Since I work with academic dress, I could not resist trying to make one.
This is what the pattern page looks like, text and all:
The first problem was to understand the pattern - which piece is which? The pattern pieces were identified:
Then I had to understand the letters and markings. The book contains a table to convert the letters both to "bara" (a Castilian measure - one bara is 85 cm) and to centimeters.