CHEWY said:
What do you mean by "lugged"?
It's the type of construction, the tubes are slid into "sockets" or lugs at the head tube, bottom bracket and junction of seat and top tube, and brazed.
Some old school lugs are beautiful works of hand filing and sawing. There was a frame builder in Sydney named Fred Morgan whose bikes look like works of art. As far as I know the only charge for one of his frames was 20kg of coffee, and you had to ride 10000 km with him. He would only offer to make you a frame, you could not ask him for one. My mate had one, I'd die for one today.