Above: Figure 6.
TOP ROW: Only 3 lug sets were widely used by Berry from 1950 until the end of production in 1974: (A1) Oscar Egg Super Champion lugs (photo by Rick Hart). (A2) Nervex Professional lugs (photo by Toni Theilmeier). (A3) Prugnat Type-S lugs (photo by Guy Taylor).
BOTTOM ROW: Not all frames were built with the 3 common lug sets pictured in the top row. Pictured in the bottom row are two examples of atypical lugs: (B1) Berry’s 1953 display frame featured delicate, hand-cut, symmetrical fleurs-des-lis and fretwork (photo by Bob Hovey). (B2) Berry used Prugnat 62/S lug sets to build a few frames, including this 1969 road frame (Photo by Colin Petty).