Hi Ken, nice meeting you at assembly.
33231 is outside the range of Kennebec serial numbers.
22231 is listed as a 17' Kennebec Model Type B with 48" decks. It was planked by Cameron on 4/5/1930, and canvassed by Maxwell on 5/24/1931 It was originally painted white, and packed by Gregory on 6/7/1930. It was shipped on 6/6/1930 (don't ask me how they packed it after they shipped it...) to customer 30-396. We don't have a key to the customer code, the first part is simply the year, the second part may be an order number.
Cheers,
Dan