Book excerpt: This is a hardcover book about German Helmet Lot Numbers produced during 1935-1945. UPDATED 11/2021 (REVISION - 11) A handy study guide for those German Helmet collectors and researchers wishing to know more about Lot Numbers and how they relate to their own German helmets. ET/ckl, SE/hkp, Q, NS, EF, and qvL/bvL helmet factories are discussed with approximately 21,300 lot number entries overall. M35, M40, M42, and M38 helmet shell types are listed along with DD, SD, and ND examples with factory decal drops and beaded examples. Specifications: paperback, 8.5 X 11 (1-1/2 inch thickness) 799 pages. Copyright 2011 by Brian Ice. NO new period or factory documentation was used in the creation of this book.