Petar Darvingov and unidentified person. Studio portrait, whole figure, military clothing. Photo studio "N. Sisakian". Stamp of photographer. An unidentified location. Black and white photo. 16,2 х 10, 6 cm. Bulgarian language. Paper. Pasted image on cardboard. Good quality. Original reference: BOX2; F73k_op1_ae2272_v001.