You will need a professional appraisal
About $30.
believing you have a Colt SAA, it was made 1879. As to value. Lets say $1500 to $6000. Now, that would depend on overall condition. fair to very good.......
The value of a 1879 1 rupee Indian coin depends on its condition. This coin in excellent condition is valued between 24.99 and 39.99 as of 2014.
The value of an antique firearm (made prior to 1899 is the legal definition of antique forearm) will depend on the exact make, model, and CONDITION. The value of your revolver could be as low as a few dollars, or several hundred. Unfortunately, there is no way to tell at long distance- it will require a hands-on appraisal by a knowledgeable person.
Assuming no mintmarks, circulated Morgan dollars from 1879 are worth $17.00-$26.00 depending on condition.
$275.00 to $300.00 in circulated condition
your 1879 (base on serial number) colt SAA value will depend on overall condition. If in ex. condition $8 - $10 thousand. as the condition diminishes so does the value.
An 1879 S Morgan dollar in MS(Mint State)63 condition is worth somewhere around $64. This is a common date.
1879 U.S. Morgan silver dollars have a bullion value of about $13 today, August 25, 2017. According to PCGS (Professional Coin Grading Service) an 1879 Morgan dollar in circulated condition has a value of about $27 to $8000. In uncirculated condition it has a value ranging from $55 to $120,000. These values depend upon which mint issued it and the condition of the coin. There are also different varieties of design found on these coins which can also affect their value. If you have a Morgan dollar and wish to know its value I would suggest taking it to a coin dealer or two and get an estimate.
On August 25,2017 the value of an 1879-s with the 1878 reverse ranges from about $36 to $43000 depending upon the condition of the coin.
1879 S is not a rare date for Morgan dollars. On average if they are in circulated condition they are worth $16.50.