Good comments and onservations.

I am sure I have read of him receiving the Rigby rifle in his books. Of course it could have been the instances you mention of others being presented with a .275 rifle.

My recollection was the .275 he used for the maneater killing was NOT the presentation Rigby. Later tigers, leopards etc, maybe, I don't know.

The book maybe where the presentation of the Rigby .275 was possibly the autobiographical book of Corbett - My India?

Marc Newton posted up lots of photos and other posts on the Corbett presentation rifle. And also took it back to India for a "tour". Was very interesting. Unfortunately he has deleted his facebook profile so it is all gone. There might be some also on the Rigby facebook page.