You have Stevens model 77b d16 gage pump with no serial number in mint cond whats the value?

The value of a Stevens Model 77B D16 gauge pump in mint condition can vary based on factors such as market demand, rarity, and specific features. Generally, such vintage pumps can range from $200 to $800, but it's advisable to consult recent sales or auction results for a more accurate estimate. Additionally, engaging with collectors or specialty retailers might provide a clearer picture of its current market value.