Your Winchester 1892 rifle has ample light surface pitting and corrosion, not unusual for working guns. In 32-20 (32 WCF), with an octagon barrel and relatively nice wood, an 1892 rifle is worth around $600-$1000. Being a pre-1898 gun and first year gun might add another $200-$300 to that.
Never try to educate someone who resists knowledge at all costs.
But what do I know?