This is a lightweight 20ga A5 made in 1966. The barrel should be marked for 2 3/4 shells. ***If the barrel is marked for 3" shells then it is not the original barrel. It is not safe to shoot 3" mag shells with the standard receiver.
Need a detailed description.
A few hundred to a few thousand.
50-500 USD or so
The PZ found in the middle of your serial number indicated that your browning light twenty auto-5 shotgun was made by browning in 1981.
1973
Only the "light" Twenty" had a gold trigger. My 1964 Belgium Browning Light Twenty has a gold trigger.
Contact Browning and they will send you one.
Belgium 20 ga A5's will have a number and letter together before the serial number such as: 0Z - 8Z and 68Z-70Z for lightweight guns 7X and 68X-76X for 20ga Magnums These numbers plus a letter shows it was made in Belgium. Ther are a few other exceptions, but if you wish to find the origin of a specific gun, ask your question with a serial number included.
Your Browning light weight 20ga.auto-5 shotgun was made in the year 1964,with the serial number that you have provided.
The serial number is not complete to determine the year, but these guns were made from 1958-1976 in Belgium. St. Louis was on barrels up to 1969. On 1958-1968 Light Twenty's, 95-98% condition has been bringing prices of $700-$1200 at auction
300 USD
Go to Browning's web site. They have a sn function listed under customer service.