‘Boyau 38’ World War 1 French Trench Sign 'ELLO ‘Boyau 38’ World War 1 French Trench Sign Previous: ‘Pte Henry Fisher’ World War 1 Dog Tag which had an eight-sided green tag and the second was a round red tag. In the event of death the red tag was cut off, leaving the green tag on the body. Others finding a body with only the green tag would know that the death was already being reported. Next: Officers Photographed Outside Blenheim Palace