Unusual Antique Wood Side Blown Flute ? Recorder? ????

Description

OK, I have no idea what this is??
Looks like a Recorder? But has only 6 holes.
You blow in the knob on the side,
it appears works fine.
About 14 inches long, appears to be very old.
All items are shipped UPS Ground Or USPS. Items will usually ship within 3-5 Business days
NO INTERNATIONAL BIDS.
I will only accept returns if the item is not as described, most of the items I sell are antiques and do show signs of age and  handling. WHAT YOU SEE IN THE PICTURES IS WHAT YOU GET!  I AM NOT AN EXPERT IN EVERYTHING! IF YOU HAVE QUESTIONS ASK!!
High bidder pays actual packing/shipping/insurance costs and agrees to submit payment within 3 days of close of auction. *****
Most items ship within 3 business days or less