When was a 16 gauge shotgun made by the bridge gun company with serial number A504792 made?

The Bridge Gun Company was known for producing shotguns primarily in the early to mid-20th century. However, without specific records or a reliable date reference for the serial number A504792, it's challenging to pinpoint the exact manufacture date. Generally, shotguns from this era can often be dated to the 1930s or 1940s. For precise information, consulting a firearms expert or reference database would be necessary.