It started in 1946 to 1985
They were made from 1946 to 1985. If you gave me the serial number I might be able to give you a year.
I suggest you go to Crosman.com and click on Support and ask your question there. Crosman owns the Benjamin line of air rifles
Benjamin made this model from 1946 to 1985, but did not start serializing them until 1957. I also have a Benjamin Franklin that has no serial number. Before 1957 it is not possible to set an exact date. Just know it's OLD. The 137 is a .177 caliber pellet pistol the 132 is a .22 caliber pistol and the 130 is a BB pistol.
see the link below:
Benjamin made a 137 pistol not a 137 rifle. They did make a 317 rifle, is this what you are asking about? The pistol model 137 was made between 1946-85 the rifle model 317 was made between 1940-1969
Produced between 1946 - 85 as models 130, 132 and last as 137. Please state the condition of the pistol to get an estimate of value. Poor, Fair, Good, Very good or Excellent.
The model Benjamin 137 was made between 1946-1985. But you will need the Serial No to tell the exact date. In 1957 Benjamin used the serial number to establish the date. From 1946 to 1957 there are no records as to the date. See the link below for more information. BTW today Crosman air gun company owns the Benjamin line of products.
The first Benjamin model was the "St Louis model" made in 1899.
This model was made between 1946-1985 and in V/G condition it is worth between $60 and $80 if it still working. see the link below for the Owners Manual
Which Model are you asking about.
1959