I've never had nay problem with any of mine, but they're all from England and Germany. You may know tjat Anglia Perfumery produces several of the Crown Perfumes under a different name - if you don't trust old bottles that's the way to go, especially since Anglia prices are very reasonable. I will be getting Eau de Russe there sooner or later.
Maréchal original is an absolutely stunning green rose fragrance and I'm down to my last milliliters. I've only ever seen the ridiculously expensive special edition of this, no regular bottles.
Town & Country is my favorite Crown, though I have yet to try the enticing Sumare. T&C took a while to grow on me, but at some point I realized just how brilliant a composition it is and how good the ingredients are. Let some of this dry on a tissue and what you have after two days still smells wonderfully rich and natural. Spiced Limes is an equal work of genius that appears simple on the surface. I also prefer Crown's Fougere to both Trumper's Wild and Penhaligon's English Fern, and Sandringham is a jewel of Edwardian dandyism. Quinine is very special but I've learned to love it. The only one's I'm not enamored with are Imperial, best lemon in the world, but very old-fashioned powdery dry-down (some day I like it, some not) and Park Royal, which I find musty-clovey. But all are worth sampling. Hope you find some treasures.