Identifying a Mauser

[Fritz the Cat]

I'd like to pick the knowledge of the NES brain trust.

As I've been going through my dad's collection I came across this Mauser. It had a Simmons 3-9 on it with the see through rings. Where one would usually find the armorer markings is completely blank. Beneath the furniture is the stamped serial # with another alpha numeric # beneath it.
I only have Swedish Mausers and I don't know much beyond those regarding Mausers. Any thoughts on what this may be to help narrow down my research?

 

[Hardwired]

Looks like a Czech vz24. Don't know much about them but guessing S Block serial, no crest based on info here:
Czechoslovak Mauser Serial Numbers

Member 40cal may know more as he recently posted one.

 

[majspud]

All Czechs had straight bolts; save the G33/40. Has a Czech style take down dimple, but Czech serials are on the side of the receiver. What does the receiver look like?

t

 

[PATRON]

Looks like a 1893 Spanish Mauser.

 

[Fritz the Cat]

All Czechs had straight bolts; save the G33/40. Has a Czech style take down dimple, but Czech serials are on the side of the receiver. What does the receiver look like?

t

From above

 

[PATRON]

A Spanish 1916 Mauser.

 

[Fritz the Cat]

A Spanish 1916 Mauser.

What distinguishing features make it a Spanish?

 

[Fritz the Cat]

The rear sight is what I find unique about this rifle. It is unlike the other Mauser sights I have seen. And definitely not like my Swede.

 

[PATRON]

Check this out.

 

[Fritz the Cat]

Looks just like mine, but in better shape