While participating in the International Exhibition in Berlin in 1938, Carlo Schiavi and Dr. Franjo Kresnik made a violin in front of the visitors. After making the violin, they photographed it, so the Maritime and Historical Museum of the Croatian Littoral in Rijeka keeps a set of photos where Dr. Kresnik holds the violin and Carlo takes the photo, or vice versa. When taking photos, they are in the exterior in front of the wall.