That all depends on the rifle,or carbine itself.The rifle could be had with a octagon barrel,different barrel length,s.It could also be had with a shotgun style butt stock,half magazine,checkered wood,special order wood,cresent style steel butt plate etc.A saddle ring carbine will have a ring on the left side of the receiver,a shorter 20in barrel,and any special order features that were listed above.
A model 1200 made by Browning is unknown. No such model exists. Winchester made a model 1200 Shotgun, perhaps that's what you are looking for.
Your Winchester Model 12 was manufactured in 1929. The gauge will be in the approximate area of where it says Model 1912, listed as 12ga., 20ga., 16ga., etc. The choke of the gun will be there also. FULL. MOD. etc. The most common configuration would be a Winchester Model 1912...12ga....FULL choke. If still in doubt...find your local gun shop and let them look at it.
Looks like a Winchester saddle rifle--lever & hammer
It will be eight sided,thus the name hexagon barrel.
oldguns.net
Go to Proofhouse.com and look at the Winchester sn data.
Go to Proofhouse.com and look at the Winchester sn data.
Go to Proofhouse.com and look at the Winchester sn data.
From the length of the serial number, I would assume you have a Winchester Model 94. If so, look at the related question "How old is a Winchester Model 94" for your answer.
Go to Proofhouse.com and look at the Winchester sn data.
look for the Winchester model 1886 in 33 cal.
Go to Proofhouse.com and look at the Winchester sn data.