Antique Field Binoculars & Leather Case & Strap Possibly WW1

Very old pair on Binoculars possibly WW1 and leather case. No name, it just says Lenses and 10. They are clear to look through and have the wind protection for the eye area. Still has leather albeit worn around the binocular, no tears or peeling. * Some wear on case and binoculars- small dent on one of the casing to binocular, but does not effect the viewing. It opens up and shows numbers 2 4 6 8 10 (you cannot quite see 10) Please view all photos to see the wear. Dimensions: 13cm when open & 10cm closed.