[D-DAY / OPERATION NEPTUNE / MILITARY INTELLIGENCE] ON1 Appendix VII: Annexes C & D | 1944, Top Secret Operation Neptune Intelligence Files with Large-Scale Utah Beach Defence Chart — used aboard USS YMS-381 on D-Day

Folio (330 x 210 mm), hardbound in original plain boards with cloth spine. Marked Top Secret. Copy No. 1775.
46pp typescript (Annexe C), with additional annexed material (Annexe D), and complete with the large folding map ON1, Appendix VII, Annexe C, Chart No. 2613: “Coastline and Range of German Batteries, Utah Beach North.”

An extraordinary survival and one of the most important wartime intelligence documents relating to the American landings on Utah Beach. This original hardbound volume — not a file copy — was in operational use aboard USS YMS-381 during the D-Day landings, a minesweeper operating in advance of the main American assault. It includes both Annexes C and D of the ON1 Appendix VII series, produced for Operation Neptune, the naval component of Operation Overlord.

The accompanying large-scale defence chart (Chart 2613) presents a highly detailed overview of German coastal artillery positions, ranges, and arcs of fire — intelligence that was critical to the Allied landings on June 6, 1944. The annexes incorporate data from aerial reconnaissance, intercepted communications, and resistance networks, compiled for strategic use by senior Allied naval command.

Surviving examples of this document are extraordinarily scarce, and almost never found complete with the original Utah Beach map. Most copies were either destroyed after the war or remain in classified institutional archives. This example comes from The Beckham Collection, the most significant private D-Day archive to have come to market in recent memory.

Provenance: From The Beckham Collection (featured in The Telegraph). This document was aboard USS YMS-381 during the D-Day invasion.

Condition: Excellent. Internally clean and complete. Map expertly folded and uncreased. Binding sound with minor wear to extremities.

An unprecedented offering — rare in any form, and virtually unseen with wartime provenance, in-use status, and complete mapping.