The stained glass window presenting Saint Joseph in a Roman costume, as evidenced by his characteristic dress, bands, and footwear. The stained glass presents the attributes of this saint - the Angevin lilies and a measuring instrument,
being a symbol of carpentry - the profession of Saint Joseph. At the bottom of the stained glass window, there is a coat of arms of the Ballestrem family with the inscription "Pro fide" - "For faith".
Decoration of elevation is very interesting, accented only by laying of the bricks in various geometrical patterns. It is a rare practice, even the simple brick elevations of the churches built in that period are usually decorated
with the use of stone details, glazed or profiled bricks or white blend.