There really is no way to know exactly when it was made. Smith and Wesson makes parts in batches and there is no guarantee that a frame made today will be built today. The closest you can come is a date showing when it shipped from the Smith and Wesson wareshouse. This particular serial number was shipped @ 1958.
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 18 was made in the year 1962.
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 59 was made in the year 1975.
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.
No serial number given.
Can't tell model number from just the serial number.
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.