OK, here is my American stallion I have been riding since 1992, fits like a glove.
Its a Dave Levy custom titanium 73/73 frame 56 cm with all campie. other than a newer derailler it is all original since 92. Still ride sew up tires.
Its been dumped a few times since new but shows no signs of fatigue or stress anywhere on the frame. it weighs about 1/2 pound heavier than my youngest son's carbon fiber pinnarello.