First World War

This is the back of F120k_op1_ae1057_v005. Text with ink: "First infantry regiment of Sofia". Place Drenova Chapter. 15,4 x 12,5 cm. Bulgarian language. Paper. Asymmetrically cut. Pasted with tape. Folded edges. Dirty. Torn. Original reference: BOX5; F120k_op1_ae1057_r005.