Es possible to show us a photo of the bolt face, por favor?

The bolt face of an 1893 is not the same as other Mausers.

Also, DO NOT use any 7x57 military ammunition made in Chile in the 1960s or 1970s.  The powder is deteriorating, producing explosive gas & liquid confined in the shiny, almost new-appearing cartridge cases.  Case head separations will occur & the pre-98s are not good at handling gas.  You could lose an eye.