What is the age and value and manufacturer of a Western Field model 59 A pump action?

The Western Field Model 59 A is a shotgun that was produced primarily in the 1960s and 1970s, making it around 50-60 years old. Its value can vary significantly based on condition, ranging from approximately $150 to $400. The manufacturer of this model is Mossberg, as Western Field was a brand used by Montgomery Ward to market firearms made by Mossberg.