This is the: 1929 BUHL SPORT AIRSEDAN
The Buhl Airsedan was a civil utility aircraft manufactured in the United States by Buhl Aircraft Company in the late 1920s and early 30s. Later models featured gradually increased seating and larger engines, but all were conventional sesquiplanes with fully enclosed cockpits and passenger cabins.
After Buhl ceased operations, the drawings and jigs were purchased and a small number of CA-6's were built in Canada by the Ontario Provincial Air Service (OPAS) for use as fire spotting aircraft.
If confirmed, open round as I'm leaving on vacation later today.