Military order, parades on the front, and prayers to parts of 11 Infantry Division

This is the back of F73k_op1_ae2800_v014. Text with pencil: Oath of soldiers from 1 brigade of 11 infantry Macedonian division, village of Borievo / near Strumitsa /, Macedonia. Bulgarian language. Paper. Original reference: BOX3; F73k_op1_ae2800_r014.