Found - a small thin 4 page pamphlet Angels at Mons printed in Felixstowe, England about 1920. Its price was ninepence for a 100 and it was almost certainly for distribution in churches. Ours was found in a missal.
There is much elsewhere about the angels that are said to have appeared on the WW1 battlefield at Mons. Arthur Machen's 1915 book The Bowmen and Other Legends of War really started the legend.
Historian A.J.P. Taylor was so impressed by the evidence then available that he felt confident referring to Mons, in his 1963 History of the First World War, as the only battle where “supernatural intervention was observed, more or less reliably, on the British side.”
The Penguin Encyclopedia of Horror and the Supernatural says of Machen's book: "During Machen's lifetime 'The Bowmen' was easily his most influential work of fiction, in ways he never predicted. First published in a 1914 Evening News after the Battle of Mons, it told how British troops, their retreat cut off by the Germans, were miraculously rescued by a ghostly St. George and his bowmen of Agincourt. Widely accepted as true or as a genuine legend, the incident is regularly referred to even today, in books of occult lore and oral histories of the Great War." Fortean Times has this great story of hoaxes and mayhem around the legend with a report on a Hollywood movie that was going to be made on the angels with Marlon Brando.Continue reading