Apologies to Whistlin’ Will, but I was just about to ask the same question:
“Anyone ever play one of these?”
Sorry if I’m wrong, but that looks for all the world like a really fat, stubby recorder. 
Looks like a spelpipa with a single reed tip. Can’t really be called a “tin whistle” with the reed. I imagine it sounds much like a (high pitch) clarinet. I wouldn’t pay that much for it.
Some 27 years ago, I took a couple of German courses (… and haven’t used it since). It appears to be saying that it’s a D whistle that has been crossed with a mouthpiece for a reed instrument… a bit of a frankenwhistle. Looks to be well-made, and had me curious.
It’s a chalumeau, a pre-cursor to the clarinet
. You can get a well-made but cheaper “plastic” one here http://www.hansonclarinets.com/Hanson_Clarinet_Company._Making_Music_in_Great_Britain./Chalumeau.html
They’re (usually) played using recorder fingering, but being a reed instrument, only have the first nine notes ( c to d ) available (there’s a thumb-hole on the back for the top d), though for the same reason, they play an octave lower than a whistle (or recorder) for the same overall length of instrument.
Check out the video clips on the manufacturers web-site http://stores.ebay.de/Tupian-Chalumeaus/Klangbeispiele.html … they’re a suprisingly pleasant instrument to listen to … in the right hands 
Thanks!
You can get a new one here on clearance for US$288. Made by the Adler company in Germany (a r******r maker) who has gone out of business.
Looks a bit like a xaphoon to me.
Kypfer is right on. I own one of these as well as a xaphoon. While the xaphoon is more like a sax, the chalumeau works and sounds like a clarinet with, of course, less range. In the right hands, it can sound amazing. I love to play mine at parties and it does finger like a recorder.
ecohawk