WW1 Austro-Hungarian Imperial Field Grey Wool Lining Undercoat

This field-grey overcoat lining was made of wool and could be buttoned in for added warmth or removed in milder weather. It was collarless, fastened at the front with four plain zinc buttons, and equipped with simple metal cuff buttons allowing two width adjustments. During the war—particularly on fatigue duty—the lining was often worn separately as outerwear.