[fastpat]

I think a few of those were used by Antilles Air Boats until the untimely demise of the owner, Charles Blair, the husband of Maureen O'hara.

More:
http://www.airliners.net/search/photo.search?airlinesearch=Antilles%20Air%20Boats&distinct_entry=true
http://www.users.qwest.net/~aknot/blair.htm