This is a double barrel, over/under shotgun.
The Dictionary says: "to place above or upon something else, or one upon another." As in the case of the Browning shotgun, the Superposed model ws the first sucessful Over/Under shotgun ever made. Browning used the dictionary description to name the model "Superposed" because one barrel is apon another.
It is the model name of the first Over/under shotgun that Browning made. "Superposed" in the dictionary means "one on top or over another".
Superposed
Browning Superposed Shotgun
If it is a Superposed model 1951.
With the serial number that you provided,your Browning superposed shotgun was made in Belguim for Browning in the year 1955.
John Moses Browning. The Browning Superposed was the first practicle over, under shotgun
Are we talking a citori,or a superposed? this is needed to get a accurate value.Also include the grade of your shotgun if it is a superposed.
It will be marked on the botton of the receiver.
1935
1950 Superposed.
Your serial number of 15232 indicates that your Browning superposed shotgun was made in the year 1938.There were 1999 made that year starting with serial number 14,001 and ending with 16,000.