This book cover the periods November-December 1901 and February 1907. It was used by draftsman William Simpkin and unidentified authors. Most of the book consists of tissue copies of construction and equipment cost estimates for the Dunderland works (1901). A few pages, dating from 1907, relate to pattern drawings and the cost of installing giant rolls at the New Jersey and Pennsylvania Concentrating Works and the Carnegie Steel Co. The book contains 506 numbered pages; pages 69-500 are blank.