Ok, just had a chance to better examine this w/c canoe [ stem # reads 15 80344 ]. It seems to be neither a regular Bobs Special or Prospector.
Here are the specs: L= 15', D= 15", W= 37". Tapered ribs are thin 1/4" x 2.25" spaced only 1/2" apart. Construction is of white cedar with ash? wales, standard oak keel and aluminium stem bands. Appears too be part Bobs Special, Prospector and Guide Special. What is it?