identify

Hi, can anybody identify my father's accordion from 1950's? Of course it is Royal Standard, but more? It is fully working, 99.9% working, 100% state. No scraches, really as a new one. Thank you for your reponse. Peter

Hello everyone! I am just learning how to play the accordion by ear and had the good fortune of coming into possession of a Hohner one. I was wondering if anyone could help me identify which model this is, so I can have a bit more info and maybe be able to find a fingering chart for it...