Depends on what you have.
year 1896
post the serial and your get an answer.
It will be eight sided,thus the name hexagon barrel.
In this model of Winchester rifle,there is no difference in value between the round or octagon barrel.
good to know
Provide sn.
About 1906
They are two very different cases, minimally the barrel and breaches are different.
Who made it, what caliber is it, is it a rifle, shotgun or hadgun, how long is the barrel, is the barrel round or octagon, what is the stock made out of, what is the serial number(if any)? Who made it, what caliber is it, is it a rifle, shotgun or hadgun, how long is the barrel, is the barrel round or octagon, what is the stock made out of, what is the serial number(if any)?
None of them say. 22 short, long, or long rifle round barrel 12-A octagon barrel 12-C 22 short (octagon) 12-B 22 Remington Special (octagon) 12-CS
In order to determine the exact value of a Marlin model 1892 22 caliber octagon barrel lever action firearm, a couple factors would need to be taken into consideration. Most importantly, the condition of the firearm.
There are schematics available on the web for about $30 plus shipping and handling.