HI,I also have a Echo 1v and wondered about it’s age so i contacted Hohner and this was there reply
Dear William,
the accordion ECHO shown is a model that was produced by our Swiss subsidiary Accordina in CH-Altstätten and also sold through Switzerland.
The serial number stamped below is a Swiss internal number which was not kept here at the parent factory.
Unfortunately, we are therefore not able to determine the age of this model and therefore not able to issue a certificate.
So you don’t need to pay the EUR 30,00.
Hope this info is helpfull
Kind regards
Bill C
the serial No is stamped in celluloid on the bottom of the base end. very faint on mine
