Austria. Karl I 1887-1922. Bravery in war 1916-1918. 2nd Class. Ag; 40.5mm; 20.0g. A: CAROLUS D.G. IMP. AUST. REX BOH. ETC. ET REX APOST. HUNG. (signed:) KAUTSCH. R: FORTITUDINI, within a wreath laurel imposed on crossed standards. (VF) Note: Awarded to non-commissioned officers and other ranks for a deed of bravery in war; first class in gold, second class in silver and third class in bronze. Source: https://treasurecollecting.wordpress.com/2014/08/28/karil-i-bravery-medal-bronze-fortitvdini/
Estimate: USD 100 - 150