No known sn data published.
100-300 or so
Back issues of Gun Digest would be a place to start.
50-300 usd
The butt.
That Colt police positive special with serial # 594826was manufactured in 1951.
1877 if it's a Single Action Army. Nothing special about the serial number.
100-450 USD or so
about 1919
50-200
No published sn data
there are far to many #s to be a proper serial #
1967