Biggest frame size for a 20 ga?

[Autumn Daze]

Researcher has a great #2 frame two barrel set 12 and 20 I believe. Maybe he will post the picture's again.

[Bill Murphy]

In a California auction several years ago, there were several twenties in large size frames, maybe up to #3. One set of 20 gauge barrels in that auction weighed something like six pounds plus. My #3 frame 16 gauge was delivered from Parker Brothers at 8 pounds, 13 ounces. The 28" barrels are marked 4-13.