Bought a Raleigh Team USA racing on eBay last year (along with a few others, but the Raleigh was the only one I thought to weigh because it was the only one that didn't have a headset already installed.)
52 cm, 531C tubing, Campy dropouts, steel fork. I forget what the two came out to together -- 'cos really, it doesn't matter -- but I know it was possible to weigh at least the frame without fork on my wife's kitchen scale that maxes out at 2.2 kg. It's quite easy (with non-super-light parts of the era) to build a 19-20 lb bike in a frame that size, and that's with a leather Brooks saddle.