Thread: Identification please

A quick google search turned up following and shows that with a 7x57 round would make a collection on its own:

Bell recorded all of his kills and shots fired. It was a business to him, not pleasure, and he needed to record expenditures.

He shot exactly 1,011 elephants; about 800 of them were shot with Rigby-made 7x57mm (.275 Rigby) rifles and round nose 173 grain military ammo.
He shot elephants with a Mannlicher-Schoenauer 6.5x54mm carbine using the long 159 grain FMJ bullets and noted that it was probably the most beautiful rifle he ever had, but gave it up due to faulty ammunition.
He shot his first safari with a Lee Enfield in .303 British and the 215 grain army bullet. Thereafter he kept a ten shot Army& Navy Lee Enfield as a sort of back up and in the hope he might find ten elephants silly enough to stand around long enough for him to use the whole magazine.
He went to rifles chambered in .318 Westley Richards for a while, which is a .32 caliber cartridge firing a 250 grain bullet at about 2400 fps, but found the ammunition unreliable and again returned to the 7x57mm. He later wrote that the .318 Westley Richards was more of a reliable killer for certain shots, while the 7x57 was a "surgeons" rifle.
He also recorded that one of the reasons why he favored the 7x57 was that the ammunition was more reliable and he could not recall ever having a fault with it; whereas British sporting ammunition, apart from the .303 military ammo, gave him endless trouble with splitting cases.