Many 44 Magnums in the S169000 serial number range shipped in early to mid-1957. The revolver most likely has a 4-screw frame, but there is a remote possibility it has a 5-screw frame. The mahogany presentation was introduced in early 1960 so is not correct for this 44 Magnum.

The 44 Magnum sounds like a shooter to me and worth no more that $850 or so.

Bill