Your Smith and Wesson model 66-2 dates from between 1982-1985.Further the prefix of ajt to the serial number places your revolver from 1984-1985.I hope that you find this helpful.
You can not tell the model number with just the serial number.
No way to tell model number from just the serial number.
Your serial number indicates that your Smith and Wesson model 59 was made in the year 1975.
With the serial number that you have supplied,your Smith and Wesson model 15 was made in the year 1950.
Your serial number indicates that your Smith and Wesson model 18 was made in the year 1962.
Your Smith and Wesson model 19 was made in the year 1978 by the serial number that you have supplied.
Your serial number dates your Smith and Wesson model 59 to the years 1977-1978.
Can't tell model number from just the serial number.
No serial number given.
129095
Your serial number indicates that your Smith and Wesson model 39-2 was made in the year 1976.
With the serial number that you have provided,your Smith and Wesson model 14-4 was made in the year 1977.