This German-made Hohner Saxonette is a blow accordion. The seller of the instrument said that there were:

12 keys over recessed holes and there [were] even KEY PADS on the keys. It appears that each hole is equipped with a metal reed placed inside… It measures 17 1/2″ in length and has a 4″ bell.

This Saxonette was missing its mouthpiece.

Source: eBay.com

While this Saxonette is in worse shape overall, it does have a mouthpiece. At least the photo is large enough that you can see the instrument in more detail.

Source: eBay.com

The Hohner Sax

A few months later I saw a couple of identical instruments appear on eBay under the name The Hohner Sax.

Source: eBay.com
Source: eBay.com

In the summer of 2010 this complete Hohner Sax popped up for auction. Unfortunately despite it having its mouthpiece, it had a lot of dents.

Source: eBay.com

In November 2010 this lovely specimen appeared on eBay. Not only did it have its mouthpiece, but it also appeared to be dent free.

The seller described the instrument like this:

Although it looks like a saxophone, it sounds more like a harmonica. Not surprised, considering it was made by M.Hohner of Germany. All brass construction. It still works!!

Source: eBay.com

I don’t know why Hohner changed the name of their blow accordion from Saxonette to The Hohner Sax. Perhaps it had something to do with these instrument called saxonettes, which are in fact related to the clarinet family. This French blog has some saxonette photos that you might find interesting.