470Rigby,

Yes, this is an interesting old double. It does have the London address on the barrels, and I feel the same as you as to the probable range of manufacturing dates.

Not all the screw grip actions after the merger were marked Webley&Scott

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Note the two screws on the rib in the photo. Any ideas as to purpose of these holes? I once saw an Evans that had an aperture sight mounted here, but have no idea if that was the case with this rifle.

Jim