50-400 usd
Call S&W with the serial number, and they will tell you when it left the factory.
100-300
110.1667
661 is prime.
3√661 ≈ 8.711
661 x 1
About 200-300 kilos or 440-661 lb
661 x 36 = 23796
661 miles is about 1063.78 kilometres.
The average of 545 and 777 is 661.
165.25
661 is spelled "six hundred and sixty one"