if I am understanding your question, you want to know the bridge pin taper of your tenor guitar. a quick method would be if you have a Gibson guitar around, try fit one of the pins, typically Gibson pins are 3 degree taper. Likewise, a modern Martin(and Collings I believe) bridge pin typically would be 5 degree taper.
or
call/email Bob Colosi with the necessary dimensions of your existing bridge pins and he can tell you the taper quickly. follow this link and scroll way down and you will see the info that is needed, its near the bottom.
http://www.guitarsaddles.com/products.asp