Any help appreciated. Have had these a number of years, bought at an estate auction. Shoebox with 4 armbands and a converted Ross bayonet. The other 2 armbands were German so assumed these were as well. The red armband is a heavy canvas-like material, no markings. The black and white is a light cotton material with no markings. Someone kindly posted a link to armbands that showed the black and white to be Decontamination service but unknown which branch, three listed. Cheers Brian