The glove was found on the battlefield having been shrunk, according to the family story, by exposure to gas. In its current state it measures 12cm in length, approximately 50% of its original size. The glove is made of leather, by Dent's (see the unshrunken button on the palm side) - a manufacturer of high quality gloves (still in existence with its museum in Warminster, UK), so this was a glove owned by a British Officer. A similar glove is on display at the Imperial War Museum in London.
You can read more about this example on the Lest We Forget Online Database.