Any ideas as to a mystery frame and forks.

[keithglos]

Re:

Couple of oddities here, Nervex pro lug set but very rare to use the complete set including the fork crown, which was very strong but the look of the cast crown was preferred.

Why rub off the identity of the Nervex bracket shell?

Crimped chain stays and lack of finish to the slotted ends on the rear Campagnolo ends indicate quantity producer, although it has only a 4 figure number.

Back in the mid 50s the only builder to use the nervex welded crown I remember was Bill Gameson when he was making frames for Armstrong, in the TI works. There could have been a few others.

Keith

 

[COUPES]

Re:

Thankyou Keith! Something to go on for the owner. I'm not sure the fork has been changed. There's no serial number on the steer tube.

Simon.

 

[COUPES]

Re:

Found this also.

 

[Midlife]

Sort of reminds me of a very early 70's frame where the trend was for a total lack of braze ons. Those downtube banded on cable guides near the bottom bracket really were a poor substitute for a brazed on guide......

Shaun

 

[peetee]

That uber big ID No on the BB indicates the angles of the tube lugs. This was done on quality shells which couldn't be tweeked (bent) like cheap pressed shells to cope with the different angles required for varying frame sizes. The other clue to the quality of the BB shell is the lack of seam on the underside. Seams are formed when a cheap shell is pressed from a single metal sheet and looped round so the ends can be welded together. Always worth looking for that (and nice thin, clean edged lugs) on a frame that claims to be top notch as a bit of 531 here and there is only half the story.