Mystery stripper clips....looking for info

[kikokat]

Along with a cyq P-38 I recently picked up, I got a pair of stripper clips, and have no idea what they're for. They hold 8 rds of 9mm (possibly other sizes as well), appear chrome plated, and are marked "O 51" on the back.
I'd sure appreciate any info as to origin, and use of these clips.
Thanks in advance.

Information

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[jonnyc]

Those are Czech military surplus strippers, for use on a CZ SMG, can't recall the model number. What's the headstamp on the ammo?

[kikokat]

"W-W" "9 mm LUGER"

Thanks, Johnny. They sure look well made. Any idea as to value?

[jonnyc]

No real value at all. Not collectible and no real use for them.

[jmoore]

Might work in a Steyr (Hahn) M1912? Would be really handy for loading those pistols if they fit.

[kikokat]

If anyone out ther can use these stripper clips, let me know. You can have them.

[green]

They work very well with the Steyr Hahn pistol.