Actually, for the TB or RB100 this is the original ring. The Style 100's came with this ring from 1949 until the mid 1960's. When Gibson went to the thin rims they would not support this style ring so they had to use a larger ring that mounted on the outer edge of the rim. They stayed with the 11 inch ring until the Style 100 was discontinued in 1979 even though they went back to a thicker rim in the early 70's.
Edited by - Culloden on 08/25/2019 13:44:29
'Rob Sax info?' 1 hr