Your Gun being a five number serial starting with 42 dates back to 1911 production date. although this is an old gun what won´t help the value is that 19,300 weremade that same year.But it is still a colectors item and I have seen them go from about $500 to$700 again like any rare old item its only worth what someone is willing to pay for it. Goodluck and I hope I was helpful. for more info on that gun go to www.coltautos.com
The 25 ACP wasn't invented until 1906. Colt didn't make a pistol for it until 1908.
much depends on condition and mfg date.........from $400 to $1200 average
value depends on overall condition.....
about 1920 the value would depend of overall condition of pistol.
maybe 100 USD
75-200 USD depending on condition.
That is '6.35mm' or .25 auto. Value depends on condition.
$100-$250, dpending on condition.
any single or double action semi-automatic pistol listed as a 40 caliber pistol...............
Caliber .45 Automatic Colt Pistol.
$100-$430 or so, depending on condition. USD - United States Dollars
50-175 usd
50-260