“Onni” name on the treble side. Behind the treble are the following entries: A. Laine 10.6.1959, P. Hyttinen 21/12/1971 and S. Rummukainen 19.6.1973. In the bass, the markings Erkki Mölläri 26/3 1949 and Teemu Kärki 1985. The accordion is not playable.