Brooks saddles... you either love 'em or hate 'em. I love them. For a Linus you probably want a B66/67, the B67 will fit on a modern seat post. I used the B-17 on my road racing bikes back in the day, I currently use the Flyer (B-17 with springs) on my tour and trekking bikes, they are semi-upright riding position bikes. I have a B-33 for my DL-1 Roadster but have not gotten around to mounting it yet. I weigh around 200# and the springs take the buzz out of the road as well as soften the bumps from the potholes.
Aaron