If you are looking at a Browning shotgun, the two asterisks indicat Modified Choke.
They probably denote what choke the barrel has.
There is no way to tell from the serial number.
what does 120A choke mean-- I have no idea what you are talking about with this question about a choke
You can't tell by the serial number. Go to http://www.browning.com/customerservice/qna/detail.asp?ID=100 for choke specifications.
Not recommended.
You can't tell choke by the sn. Look closely at the breech end of the barrels. There should be some markings on the flats or bottom.
With the serial number that you have supplied,your Winchester model 1912 pump action shotgun was made in the year 1926.
200-600
around 300.00
Winchester firearms
The gun was made in 1897. However, the Parker Gun Identification and Serialization book that list all Parker made guns by serial number gauge, quality choke, trigger arrangement & barrel length does not list this serial number. It jumps from 86204 to 86580. It skips the number 86501 & I have no explanation for that wide serial number jump.
50-800 usd