By Charles Stratton. The #4 and #5 WWII-era rifles are covered from a historical perspective and all the "marks", "numbers" and codes related to England, Canada, U.S., South Africa and Pakistan are detailed. 192 Pages - Softcover. Summary of Material: A complete and comprehensive look at the Lee-Enfield No. 4 and No. 5 Rifles from parts, to disassembly, cleaning, repair and troubleshooting to collectibility, dates of manufacture and serial numbers.