... and sopranos from the same era ...
Note that most baris from this era only have the left side Plexiglas keyguard. I have seen a couple that do have the right side "angel wing," but that's uncommon.
The "Angel Wing" keyguard was patented in 1951. Based on Keilwerth's previous model, these horns were introduced after s/n 214xx. The lowest s/n I've actually seen is 219xx (1952). The highest I've seen is 50xxx (1965).

  • Soprano Soprano
  • Alto Alto
  • Tenor Tenor
  • Baritone Baritone