A friend has a Saginaw Gear HW stock made by Trimble that he is willing to sell. It has a Saginaw cartouche and the SG in the box. It is marked Trimble in the sling well with numbers. What bothers me is that it does not have SG stamped in the sling well. Should it?

He bought it about a year ago at a gun show. Without the SG in the sling well I am concerned that it may be fake. Thought? Thanks.
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