Old, discontinued, Aulos Recorders.

Here is a picture of the head of an early model Aulos 509 Treble. The white insert with the Aulos mark used to be a feature of all the 500 series Aulos models.
Aulos Descant Recorders Aulos 303N descant. This became very difficult to get in the UK. It has very good tone and 'real' recorder teachers preferred it to the old (and more expensive!) 205 model. When the new 205A appeared I gave up the struggle.
Old Aulos Treble Recorders.
Old (discontinued) Aulos treble recorders. The model without a number has no 'step' at the lower end of the middle joint. (See below.) The left hand model was good in its day. The 209/209E was short lived and rather 'clicky' to play. The 209N was a winner. The old 309 was good and very like a Coolsma. The more recent, right hand, image is not to quite the same scale as the other. There was a 209A treble available for a short time. The styling, like that of the current 209B treble is based on the current 205A descant. The early 'A' model treble is slightly longer and bigger in the bore than the 'B' model. The parts are not interchangeable.
Old Aulos Tenor Recorders.
The discontinued Aulos 311 tenor recorder. (above) It shares the same head as the keyless 311N model. The head is prone to breakage at the ridge above the bulge. An effective and invisible repair may be achieved with 'superglue'. The key is made of plastic and breaks easily. On this model the outside diameter of the pad cup is 17mm. There are no longer any replacement keys available.
The long discontinued Aulos 111 tenor recorder. The key is made of plastic and breaks easily. On this model the outside diameter of the pad cup is 14mm. There are no longer any replacement keys available.