The Miroku made Winchester Model 52B and Browning Model 52C re-issue sporters are arguably the best production .22LR sporters ever made.
I have two of them. One with excellent wood and one with the far more common straight grain wood Big W was known for.
Yours falls on the nicer side grain wise.
They are both excellent shooters. This half MOA 100 yard 5 shot group is in the right hand tail statistics wise but both my Model 52s will consistently shoot 1 MOA 5 shot groups and 1.25 MOA 10 shot groups at 100 yards with Sk Standard Plus, and they do it with class.