The Vintage German Harmonica M. Hohner THE ECHO in key C is a rare and sought-after collectible for enthusiasts of folk and world music. Made in Germany in 1937, this Echo Harp by HOHNER showcases the craftsmanship and quality that the brand is known for. With its original box and classic design, this harmonica is a unique piece of musical history that is sure to impress any collector or musician looking for a vintage instrument with a touch of nostalgia.