Help identify what this unusual stock inlet fits.

[adammiddagh]

Ran across an ad for a bolt action rifle stock, claiming to possibly fit a savage. I was curious if anyone recognized what it fits. After a fair amount of googling, I was not any farther ahead.

http://i.ebayimg.com/images/g/IswAAOSwmLlX4u8r/s-l1600.jpg

http://i.ebayimg.com/images/g/9yMAAOSwLnBX4u8j/s-l1600.jpg

[sharpshooter]

Model 25

[adammiddagh]

Thanks. I informed to seller so they could verify.