As a machine and hand knitter, it is obvious that the garments on this piece were constructed on a machine and then the directions were interpretted for hand knitters. This makes for some wild instructions and impossible gauges. When changing a machine pattern to a hand knit pattern, you can't simply replace "needle" with stitch, as is done in this book. Furthermore, some manuevers that are easy and common on a machine are awkward and seldom used when knitting by hand, but this book does not offer alternatives.
In short, I find it highly doubtful that any test garments for these patterns were actually produced by hand. They work great on a machine, but for the hand knitter, I cannot recommend this book.