Rusyn phrasebook with a dictionary annex compiled for Hungarian servicemen and published by the Hungarian Ministry of Defence. Written in a traditional literary Rusyn with vernacular elements, it is primarily interesting for discussing a variety of military topics in the language. Although the book’s background remains unknown in Rusyn studies, we can confidently identify one of the authors as Dezső (Dezyderij) Volossynovich (b. 1895), the parish priest in Pstriná, Bokša (Stropkov), and Zvala, later an official in the Hungarian Ministry of Internal Affairs.