C.A.Seydel made these Boomerang harmonicas for the Australian market. They were sold in the "Albert's Music Stores". This Chromorgan in a boomerang shape is the rarest of the boomerang harmonicas. The box and harmonica are in beautiful condition. Probably dates from the 1930's. This harp was recently sold to a buyer in France who claims he never received it. If you see one like it for sale let me know, who knows, it could be my missing harmonica.