When was your 16 gauge Francotte made nr 21955?

The 16 gauge Francotte shotgun with serial number 21955 was likely made around the early 20th century, as Francotte produced firearms from the late 19th century through the mid-20th century. For a more precise date, additional information or specific records from the manufacturer would be necessary. You may want to consult a firearms expert or collector familiar with Francotte shotguns for more accurate dating.