JACKSON (2nd Lt. L.E.S., RFA [TF])
The "Why & Wherefore" of Indirect Laying: A Simple Explanation for Officers, NCOs & Men.
2nd Ed., revised, orig. limp printed wraps., 56pp. (plus advert. leaves), several diagrams. Forster Groom.
1916
#68534
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The mathematical complexities of gun-laying. Orig. limp printed wraps., VG. See illustration on our website.
£30
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