The barrel exchange will be your best bet if you called browning this is the place they would refer you to. They are located in Ga.
500 USD
50-550 uSD
It shouldn't say light twelve on the barrel, but on the receiver. Light twelve means that the gun is a light weight version of the standard Auto5 shotgun.
0-300 USD
50 350 USD
@ 400 USD
50-550 usd
The light twelve refers to this shotgun being a light weight model of the Browning auto-5 shotgun.The difference in weight was 10oz.
according to Browning you have a Light A-5 12 ga. made in 1960. Hope this helps
1000.00 dollars
Browning.com has a sn search function you can use.
Browning.com has a sn function under customer service