No way to answer as the Citori is still being produced.
Browning has information on their web site.
Browning's web site has a sn search function.
Information is not in the public domain.
Browning produced almost 3 million Auto-5s
You will have to call Browning.
Your browning sweet sixteen was produced in 1953.
Information is not in the public domain.
All Citoris were/are made in Japan, and that is not the full serial number. There are three more numbers and two letters. Value depends mainly on the features and condition. Early Citoris with fixed chokes are not as desireable as later Citoris with choke tubes. Field and Trap guns are not as desireable as Lightning and Superlight models. Based on the information you provided, anywhere between $550 and $1000.
You will have to call Browning
Your browning auto-5 shotgun in 16ga. was produced by browning in 1953.
No.
Condition is everything. NIB they can go for around 2K. Recommend you compare like Citoris on other gun sale websites like gunbroker or gunsamerica.com