What is the manufacture date of a Lefever serial number 44587?

Lefever shotguns were typically manufactured between the late 19th century and the early 20th century, with serial numbers providing clues to their production date. For a Lefever with the serial number 44587, it is likely manufactured around the early 1900s, possibly between 1900 and 1910. However, for an exact date, consulting a detailed Lefever serial number reference guide or contacting a firearms historian would be necessary.