When it comes to the old Scientific sailing ships, watch out for one thing. A lot of them were made of balsa - the worst possible material for scale ship modeling.
I don't know how to tell, without opening the box, whether a particular kit is bass or balsa. I do know I bought a Scientific Flying Cloud many years ago and it was a piece of trash. Hairy, grainy, sloppily "carved" balsa hull, a couple of sheets of balsa with part outlines printed on them, a balsa deck sheet with printed plank seams, some balsa strips, some untapered dowels, and a bag of mediocre lead fittings. I can't imagine a lousier introduction to ship modeling.
But other folks on the Forum have bought Scientific Flying Clouds, in identical boxes, that have basswood parts. I took a look at a Scientific Golden Hind (the bigger one, in the blue box) once; it was a really nice kit. No balsa, and good, clear plans by no less than George Campbell.
I guess the bottom line is: beware of buying a Scientific sailing ship unless you can see the contents first.
A big piece of good news: the fine old Revell yacht America is back on the market. It's one of the company's December releases - in both Germany and the U.S.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.