What is the age of a Lefever Arms Co 12 gauge double barrel nitro special ser 261016?

To determine the age of a Lefever Arms Co. 12 gauge double barrel Nitro Special with serial number 261016, you can reference production records or databases specific to Lefever firearms. Generally, Lefever Nitro Specials were produced from the early 1900s until 1948, so your shotgun is likely from that era. For a more precise date, consulting specific Lefever serial number charts or an expert in antique firearms would be beneficial.