Silvered metal, obverse illustrating General Karol Swierczewski, group commander of the XII International Brigade, surrounded by the inscription "ZA WASZA WOLONOSC I NASZA (For Your Freedom and Ours), reverse illustrating the XIII Brigade breast badge on a wreath, inscribed "XIII BI 1936-1939", surrounded by the inscription "DABROWSZCZAKOM (the unit Dabrowski, named for the General), 35.3 mm, pitted, in mint condition. I original case of issue. With an award document booklet, dated 1969, and listing a recipient a Bulgarian National Nikola Georgiew Pertow.
Footnote: The medal was established in 1956 and awarded to all former members of the XIII International Brigade who fought in Spain on the Republican side during the Spanish Civil War 1936-1939. A limited number of medals were issued due to the small number of participants who were still alive in 1956.

