From the 1980's or earlier......it would have to be one of the Remington's - either the 11-87 or the 1100's....( but they aren't light )....and the 11-87's came around in late 80's.
Personally, I'd much rather have a Benelli ..../ I have their Super Sport model in a 20ga and its only 6.2 lbs with a 28" barrel ( synthetic stock, comfort tech system in it, inertia gun, really easy to clean - drop trigger group out, handles any load I've tried down to 1200 fps with no issues, and its been a good gun / but they've only been around since 2000 or so.../ I have the same model in a 12ga as well, in a 30" barrel, and its only 7.2 lbs....
Changeable screw in chokes are a plus - in any shotgun in my opinion / and soem of the 11-87's have fixed chokes ...and some of them came with changeable screw in chokes.../ I could probably get by with a shotgun choked to a Modified or maybe an Imp Cyclinder....but I would rather have the option to change my chokes as I need for different games, or different game !!