Although the item in question may or may not be a carved stone (maybe alabaster?) piece , it's not what would qualify as an 'antique' , Seawave .
The depiction appears to be that of a more or less modern-day soldier (Chinese,Korean?) , and you'll also note the tires/wheels are representations of modern-day rubber tires on steel wheels ... and there's fenders above the wheels too .
Perhaps it was intended to depict a 'heroic' pose , as was common in the cold-war era ?
Unless this one really floats your boat , I'd suggest you pass on it's purchase !