The Times Broadsheet Edition (London, UK)

During the First World War, The Times occasionally published special broadsheets, comprising a single page, for use by British troops in the trenches. In 1918, a page of A. E. Housman's poetry was issued in this format, and Conrad's work may have been published in a similar manner.

Source
Parker, Peter. "Confessions of a Worcestershire Lad." The Independent, 23 March 1996.