I have had a 98 mauser, stamped 9.3x62 on the barrel, for a number of years.
Someone before me rechambered it for a 9.3 x .338 wildcat cartride. That is a .338 case, necked up to a 9.3 bullet. I wish that had not been done, it is a beast to shoot.
Anyhow, there is some lettering on the barrel, I think it is in bronze. It states
Special made for Chas A Heyer & Co, Ltd, Nairobi, Kenya.
Does anyone know who this person was?