I believe these are WWI era British Officer "Walking Out" trousers based on similar trousers online, but I do not guarantee that. Just my guess. These are dark blue, almost black, with red piping down the sides. Nice ticking lining in waist, and a mix of British and German buttons. Has buttons for suspenders as well. These are approximately a size small. The cuffs of the trousers even have button holes for attaching to the shoes. There is some decorative blue piping in some areas like the buffs, watch pocket, and other areas. Pretty neat pair of trousers.