Astra Model 900, 7.63 Anyone up on these?

[MCM]

Have had this one going on 40 yrs. And a hand full of ammo. My father owned it prior to that.
Any info on the serial number years?I don't see any Import stamps etc? Just proof marks?
Only marks I can find are shown in the pics.
Looked online, but found Astra Spanish serial numbers that had letters before the numbers. This one is 164xx.
Just looking for any info. Thanks in advance.

[lodicollector]

I have number 9980, although as most went to China, conditions vary

[CorditeFiend]

spanish c96 copy. neat. whats it chambered in ? 9 largo ?

[saki302]

spanish c96 copy. neat. whats it chambered in ? 9 largo ?

Probably .30 mauser (7.62x25 but less power).

-Dave