The Ithaca Gun Company acquired Lefever Arms in 1916, and manufactured the Lefever Nitro Special between 1921 and 1947. The serial number on your gun indicates it is an "A Grade" made in 1937.
The Lefever Nitro Special was made by Ithaca. Yours was made in 1923.
I would say that with the serial number 1321XX,we are looking at your shotgun being made by ithaca(who made the lefever nitro special) in 1924.
Ithaca Firearms manufactured the Lefever Nitro Special after it purchased Lefever Arms Co. in 1916. This model was made between 1921 and 1947; the serial number indicates yours was made in 1929.
CHeck the receiver and under the forearm
1929
Made in 1925
Ithaca Guns manufactured the Lefever Nitro Special after it acquired Lefever Arms in 1916. This model was made between 1921 and 1947; the serial number indicates yours was made in 1924.
The best that I can say is that the Lefever Nitro special was made from 1921-1948.I do not know if the serial numbers to year of production is available in the public domain.
1927
Your shotgun was manufactured in 1923, by Ithica Guns which took over the Lefever brand when they acquired the corporation in 1916.
Ithaca Gun Company manufactured the Lefever Nitro Special under the Lefever Arms Co. brand from 1921 through 1947, except 1943 through 1945. The serial number indicates your gun was made in 1925.