Sewell and Dunton

Question
Ever heard of a Bosworth Special?

Answer
Hector
I have never seen a Sewell N. Dunton rod ; or if, so it was not remarkable. According to Antique & Collectable Fishing Rods: Identification & Value Guide Homel, Dan. 1997: There was a Model 152  and 158  as well as "Angler's Choice". There were 7' , 8' and 8 1/2 ' respectively.   The number rods were 2 sections with 2 tips while the Anglers Choice was 3 sections with 2 tips.
Rod Model     Poor-Fair    good-vg      ex-mint Prices   
 152            50          165           325
 158            40          135           275
Anglers Choice    30           95           195
Odds are very good your rod is not excellent mint.
Your model was not mentioned in Homel nor Bamboo Rod Restoration Handbook by Michael Sinclair.
History on these boys, they bought up the Montague rod company stock in 1960 - odds are you rod is not very good or collectable. They were bought in 1972 by Thomas and Thomas.
They have various models for sale on the Internet. Does it have a model number ? Check ebay  
read history at
http://mysite.verizon.net/vze2h7gi/fishnbanjossliceoflifeincyberspacecopy/id35.h...
http://www.thomasandthomas.com/p.about/about.us.html

Good Luck
Rich Mac