What is manufacture date of 12 gauge Savage Fox model B dbl barrel with 2 triggers Serial B35996?

The Savage Fox Model B double barrel shotgun was produced from the late 1940s until the early 1980s. The specific serial number B35996 suggests that it was likely manufactured in the late 1950s to early 1960s. However, for an exact date, consulting a detailed Savage Arms reference or contacting a firearms historian would provide the most accurate information.