I don't know if anyone will be able to help, but I am trying to buy this 30-30. I am trying to do determine the age and relative price for this gun.

Winchester's are documented well you can find the age by SN. If you don't wanna post the number google it easy to find.

Looks from here could be 1900 to 1990 so the sn will narrow it down a bunch.

Just my opinion I would guess mid 60's.

Thank you for the info

Manufacturers websites:
Browning firearms
http://www.browning.com/services/dategun/index.asp

Ruger Firearms
http://www.ruger.com/Firearms/PS-SerialNumberHistory.html

Private websites with this info, possibly not correct.
Colt Firearms
http://proofhouse.com/colt/index.html

Marlin Firarms
http://oldguns.net/sn_php/marlinlookup.php

Remington Firearms
http://oldguns.net/sn_php/remdates.php

Winchester Firearms
http://oldguns.net/sn_php/winmods.htm

United States military firearms
http://oldguns.net/sn_php/milmods.htm

Here's Remington's http://www.remington.com/library/history/firearm_models/ but it may not give the exact production dates

This guy has a pretty comprehensive listing of gun manufacturer web sites:

http://www.webcom.com/gun_guy/page4.htm

For Marlin lever guns:

http://www.marlinowners.com/board/viewtopic.php?t=495

GL James

Wow thanks for all of that. I really a ppreciate all the help here guys!

Those side mount holes would probably drop the value a bit.