The Iron Regiment was a military unit officially designated as the Second Infantry Regiment “Knjaz Mihailo” of the Serbian Army during the First World War. It was formed in the Toplica region and consisted mainly of first and second call conscripts from this area. The soldiers of the Iron Regiment were awarded with numerous decorations, which can be classified into 17 different orders, including both domestic and foreign. These decorations are exhibited in the Memorial Room in Prokuplje. This paper presents an application designed for mobile devices such as tablets and smartphones, intended to provide detailed information about these decorations. The application is based on an Augmented Reality (AR) module that enables recognition and provides information about the corresponding decoration. The information is displayed in the form of purposefully prepared multimedia content, including text, audio, and video recordings, as well as interactive 3D models used to illustrate the reverse of each order. The interactive functionality enables image zooming for better observation of decoration details.