Best to ask a gunsmith for help
http://www.swishercs.com/winchester/
value Winchester 140
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Best to ask a gunsmith for help
Best left to a gunsmith
Ask a gunsmith for help
Your Winchester ranger model 140 was made from 1967-1973.Winchester did not keep serial number records of this model of shotgun.
marauder.homestead.com
Highly recommend you ask a gunsmith for assistance.
You will need the help of a gunsmith.
I do not believe that the serial numbers for the Winchester model 140 ranger,semi-auto shotgun are in the public domain.I can say that the Winchester model 1400 was made from 1964-1981,and this was the higher priced version of the model 140 ranger shotgun.
Not listed in any reference I have. A model 141 is.