5920998 Other Rank?s Field Service cap cover, 1855 circa (fabric) by British School, (19th century); National Army Museum, London; (add.info.: Other Rank?s Field Service cap cover, 1855 circa. Hand stitched linen cap cover marked to Private Joseph Rook (1832-1857), Coldstream Guards, Crimean War, (1854-1856). Cap covers had first been issued to the Army of the East in the summer of 1854 for use with the Albert shako. By 1855, the Guards regiments (or at least the Coldstreams) had a cover intended for their unique field service caps: the inverted pleat across the crown allowed the cover to mould itself to the shape of the cap underneath, while the peak, made in two pieces, creates a pocket into which could fit one of the field service cap?s down-turned flaps.); by National Army Museum .