I think you'll find the belt is the woven webbing version of the British 'Bandolier equipment, pattern 1903 - Belts, waist, web.' introduced in April 1917 till Jan 1923. From the 'List of Changes in British War Material' 19146 - 30 Apr 17 'The waist belt is 44 inches in length and 1 3/4 inches in width. One end is fitted with a brass tongueless buckle with brass plate, and the other end is fitted with a brass eyeleted, tip. It is also provided with a brass slide which is secured to the belt by means of a web loop, 6 1/4 inches in length and 1/2 inch in width.' Cheers Dan