They are currently being made. They were also made in the early 80's
A shotgun made for Smith and Wesson, sold under the Smith and Wesson name.
Standard Catalog of Smith and Wesson, 3rd, ed., by Supica and Nahas can answer your question.
Yes Smith and Wesson made a hammerless shotgun. I did read at one time they were the first to do so, but they did not sell a lot of them because of the price back in the late 1800's
NO sn data for this S&W
S&W never made a Model 1300 XTR shotgun.
The Smith and Wesson model 4053 was made from 1991-1998.
The Smith and Wesson model 915 was made from 1992-1994.
Smith and Wesson does not build rifles. The rifles they sell are made for them.
The smith and wesson model 18-3 was made from 1967-1976.
The Smith and Wesson model 10-7 was made in the year 1977.
Call Smith and Wesson with the serial number and the will tell you.
Standard Catalog of Smith and Wesson.