I was curious what an 887 is and found a picture of a restoration project on a 887. It shows the serial number on the barrel opposite the bolt slide.
[img width=600 height=450]http://i958.photobucket.com/albums/ae70/Golfbuddy45/DSC02447.jpg[/img]
This is a tube feed .22LR. Have not found out where you can check the number series though.
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