Technical description: Wood comb, brass and german silver plates; brass free reeds. 10 pairs of reeds. Compass 3 incomplete diatonic octaves F₄ to F₇.
Signature/Marks: Inscribed on upper metal plate "ECHO" "SUPER / VAMPER" "MADE IN / GERMANY"; on lower plate "TRADE MARK / GESETZL. / GESCH. / M. HOHNER / MADE IN GERMANY" "FABRIQUE EN ALLEMAGNE" and with various medals; and to far right of upper plate "F".