Sokkia -8152-55 Level Book (Hard cover)

This level book really stands out as it includes 11 reference diagrams detailing things like conversions, trigonometric formulae and other useful field informations.  It has 160 pages (80 sheets)  and the dimensions are roughly 12.5 x 18cm.

Both pages have blue horizontal lines with 6 vertical columns.

The paper used in this book is cotton based rag paper which means that it is stronger and much more water resistant than traditional wood pulp based paper that is used in regular books.