This is the same as a Superposed model shotgun. Introduced in 1931, Browning still makes these in Belgium.
1973 because the two first number are the years of product of your browning b26
Your browning was made in 1976.
Your browning was made in 1976.
First cataloged in 1980. Called the Grand Liege, it is not a Superposed, but, it was built in Belgium.
Nothing. B26 = B26
You will have to contact Browning and order a history letter.
The word Citori is the name of the model of Browning you have.
No such model in the Browning line.
You will have to call Browning. That model number is not published.
AFAIK, Browning never made a model 810.
2003; you will have to call Browning for model
1994. You will have to call Browning to find out the model