Anyone have a guess? The badge should ring someones bell........

Scratch Major Taylor and Jacques Anquetiel.

close-up of hubs please! they look amazing! I'd be thinkin' I'd be rechromin' the cranks and pedals and any other original steel parts on the frame. Looks like it would be worth it.

Here is a linky to my photo page. https://www.flickr.com/photos/21162852@N07/

You can view the same pics larger there. Sorry I don't have a close up of the hubs. Those are the pics supplied to me by my LBS that's closing down.........

On closer inspection: rear hub look different... the front hub sure is cool!

No, I think they are the same. They look like Campy GS.

The chainring looks like my FB except yours is inch pitch and mine is 1/2".

I say Girardengo. A fellow C&Ver has one with nearly an identical headbadge.

My history of Italian track champions is not so good, and I can't quite make out the signature on the head badge. Neat bike, though.

The seat lug assy. looks quite close to a Frejus - but it isn't. You can rule that one out. Wasn't that chrome frame ID thread here centered around a frameset quite like this?

-Kurt

Good call

Headbadge is Constante Girardengo

Wow! You guys are good! So I assume it's from the mid 50's?
So what's the deal with the cranks? I am not usually into cottered stuff but I must say (even though they're rusty) that they are really cool.....

Thanks

P.S. I am not the owner....... but the owner is accepting offers...........Just sayin'

I'd guess 50s. Cottered was all there was before cotterless.

I think you might be right about them being the same, but these are not your standard tipo hubs.

I'm still sticking with my GS answer.

I don't think that the front and rear hubs are a pair. I like the downtube logo;-)

In the back of my mind I thought there might have been older campy hubs that looked like that. To be clear those are real "gran sport" hubs correct? Tipo being the all alloy with fewer large hole that came later?

The hubs have alloy flanges and plated steel centers. If that helps........

Yes. The old Gran Sport hubs have large and small holes where the Tipo only has large holes, but not as large as the GS holes.

Gran Sport are 3-piece as krug wrote (aluminum flanges and steel cores) and the flanges taper in. The Tipo's (all aluminum) flanges are straight and parallel.

Take off the lock nut and you will find a date code. It will be the best way of determining the age of the bike.

Rear hub has slotting in the flanges, a-la Record/NR/SR. Front is either an early, early G.S., or it might be badged Fratelli Brivio, who has been credited with producing them for Campagnolo. For that matter, they have been attributed the other way 'round too. What came first, the chicken or the egg?

For the record, Exhibit A: A pair of Fratelli Brivio track hubs (yes, they are mine, no, not for sale). Marked with the Fratelli Brivio logo at the center, "F. B." around the perimeter of the dust cap seat:



-Kurt

^^^^WOW!^^^^ Those hubs are absolutely stunning! If a guy were to restore some that had rusty centers.......Could the flanges be popped off so the centers could be re-plated? They are soooooo cool I think it would be worth it.

I've heard that people have done it, but no experience myself. Trouble is getting the two sides properly oriented when you put them back on.

I just found an old pair of GS hubs like those. On mine the outsides have tarnished a bit but the steel center is pristine and shiny.