Geoengineer.org is the International Information Center for Geotechnical Engineering, providing free access to Geotechnical News and Technical Resources for geotech. Sep 27, 2012. I know that they both have the old style push down safety but there are no serial numbers on them. One does have the. Many people love the old Blue Streak and Silver Streak air rifles. I'm honestly not. My Sheridan Blue Streak 20 Cal rocker safety air rifle has 5691E on the left side of the action.

Benjamin & Sheridan Product Dates of Manufacture In 1991 Crosman Corporation acquired Benjamin and Sheridan. In 1992 the manufacturing facility was moved to the East Bloomfield plant in Upstate New York. Elementi Di Fisica 2 Mazzoldi Pdf Writer more. In the same year Crosman instituted the serial numbering procedure which included a date of manufacture as part of the serial number.

Prior to 1975 you are not able to determine the date of manufacture by the serial number. Prior to 1992 we have information that, while missing some years, may be helpful to you in determining the age of your gun. If your gun was manufactured in or after the year 1992 then the first 3 or 4 digits of the serial number will allow you to determine when your gun was manufactured. If the first 3 or 4 digits of your serial number are 1294 or D94, then your gun was made in December of 1994. The charts below will help you determine when your product was manufactured.