With out a much more detailed description of your rifles overall condition to include the amount of original finish remaining on your rifle,I can only give you a rough estimate of between 450-1,750 dollars.
Need to know what model winchester it is?
your model 1894 Winchester was made in 1897,as to the caliber it should be marked on the top of the barrel just ahead of the bolt body.ie 30wcf=30-30 Winchester,32wcf=32 Winchester special,38wcf=38-55winchester etc.
100-1000 USD and up depending on specifics
No
The caliber of your Winchester model 1892 rifle should be marked on the barrel of the rifle,just ahead of the receiver.These were chambered in either,25-20(25WCF),or 32-20(32WCF),or 38-40(38WCF),or 44-40(44WCF)calibers.
with the serial number that you have supplied,your Winchester model 1892 rifle in 38-40 Win. was made in the year 1904.
Are you asking about a winchester model 1873,1892,or model 1894 rifle?Allthese rifles had a chambering in either 38WCF(38-40) caliber or 38-55WCF and could be ordered with a octagon barrel.Please redefine your question and add a serial number so I may have some understanding of what you are asking and what rifle you are asking about.
The caliber should be marked on the barrel of the rifle(32wcf,38wcf,44wcf)etc.There is another way to be sure,and that would be to have a gunsmith make a casting of your chamber using cerrosafe.This will allow the gunsmith to measure the chamber after the casting hardens,and is removed and determine for sure the correct caliber of your Winchester model 1892 rifle/carbine.
What is the thread size for a Winchester Model 90?
In this model of Winchester rifle,there is no difference in value between the round or octagon barrel.
No
model #24