Hello all, This is my little contribution for 'Donza'. Donza is the latin name for Deinze. This is a Belgian village near to Gent. The manufacturer "Van Hauwaert & Van Autreeve" produced between 1950-60 different parts for bycicles and scooters : saddles, cascs, sacs,... This manufacturer delivered saddles to MISA, situated in Brussels (Jette). The duoseat was an option, available from 1961. It wasmounted as standard seat from 1962 on. I have such a duoseat in my possession, that I'm willing to sell. It is in very, very good and original shape : This a real change for someone who is looking for an original MISA dual seat in almost perfect condition. If you are interested, please take contact via email. Do not bid on the site. Kind regards from Belgium. Luc